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Полугодовой тест по математике в 7 классе

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Тест по алгебре за полугодие в 7 классе

I вариант

 

Алгебра

1. Из предложенных четырех пар чисел (a;b) выделите ту, которая является недопустимой для алгебраического выражения.

 

А) a=1, b=1;     Б) a=3, b= - 6;     В) a=0, b=3;     Г) a= - 5, b= - 10.

 

2. У Васи a карандашей, у Коли b карандашей, у Вити c карандашей. Когда Вася и Коля сложили свои карандаши вместе, оказалось, что их в 3 раза больше, чем у Вити. Составьте математическую модель этой ситуации.

А) a+b=c-3;     Б) a+b-3=c;     В) a+b=3c;     Г) 3(a+b)=c.

 

3. Укажите наибольшее целое число, принадлежащее промежутку (-∞; 9,2].

А) 9;     Б) 0;      В) 10;     Г) 8.

 

4. Какая из точек принадлежит графику линейного уравнения 3х-2у+4=0?

А) А(-1;1);                   В) С(0;2);      

Б) В(0;-2);                    Г) D(1;3).

 

5. Найдите наибольшее значение линейной функции у=2х-1 на отрезке

[-2;0].                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             А) 3;     Б) 1;     В) 0;      Г) -1.

 

6. На рисунке изображен график линейной функции у=kх+m. Какие знаки имеют коэффициенты k и m?

А) k > 0, m > 0;      Б) k > 0, m < 0;     В) k < 0, m > 0;     Г) k < 0, m < 0.

 Написать ответ в №7и №8

7. Найдите значение выражения  10х-20у  при  х=1, у=2.

 

8. Решите систему уравнений

     2х+11у=15

    10х-11у=9.

 

Написать подробное решение в №9

9. В трех коробках лежат 160 карандашей. Известно, что во второй коробке их в 3 раза больше, чем в первой, а в третьей – в 4 раза больше, чем во второй. Сколько карандашей во второй коробке?

 

Геометрия

10. Выберите верные утверждения:

1) Равные углы смежные;

2) Через любые две точки проходит только одна прямая;

3) Углы равностороннего треугольника равны;

4) Треугольник равнобедренный, если его высота совпадает с медианой.

 А) 1,2,4;     Б) 2,3,4;      В) 1,4;     Г) 1,2,3,4.

 

11. Луч ОС является биссектрисой угла АОВ. Найдите АОС, если

АОВ=86.

А) 43;        Б) 172;         В) 86;       Г) 45.

 

12. Точка М является серединой отрезка АВ. Найдите АВ, если АМ=3 см.

А) 8 см;         Б) 6 см;               В) 5 см;          Г) 9 см.

 

Написать ответ в №13

13. В равнобедренном треугольнике боковая сторона равна 7 см, а периметр равен 17 см. Вычислите основание треугольника.

 

Написать подробное решение в №14

14. В треугольниках АВС и MNK  AB=MN, BC=NK, В=N. Найдите сторону МК и А, если АС=5см, М=43.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Тест за полугодие в 7 классе

II вариант

 

Алгебра

1. Из предложенных четырех пар чисел (a;b) выделите ту, которая является недопустимой для алгебраического выражения.

 

А) a=1, b=1;     Б) a=3, b= - 9;     В) a= - 1, b= - 3;     Г) a=0, b=3.

 

2. У Тани х кукол, у Оли у кукол, у Маши z кукол. Когда Таня и Маша сложили свои куклы вместе, оказалось, что их в 2 раза больше, чем  у Оли. Составьте математическую модель этой ситуации.

А) х+z=у-2;     Б) х+z=2у;     В) z+х-2=у;     Г) 2(х+z)=у.

 

3. Сколько целых чисел принадлежит промежутку (2;8)?

А) 7;     Б) 10;      В) 6;     Г) 5.

 

4. Какая из точек принадлежит графику линейного уравнения 2х-3у+7=0?

А) А(-1;1);                   В) С(0;2);      

Б) В(0;-2);                    Г) D(1;3).

 

5. Найдите наименьшее значение линейной функции у=1-3х на отрезке [1;3].                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             А) -8;     Б) 1;     В) 10;      Г) -2.

 

6. На рисунке изображен график линейной функции у=kх+m. Какие знаки имеют коэффициенты k и m?

А) k > 0, m > 0;      Б) k > 0, m < 0;     В) k < 0, m > 0;     Г) k < 0, m < 0.

 

Написать ответ в №7и №8

7. Найдите значение выражения  -15а+11b  при  а=2, b=3.

 

8. Решите систему уравнений

Написать подробное решение в №9

9. На трех полках 120 книг. Известно, что на второй полке их в 3 раза больше, чем на третьей и в 2 раза меньше, чем на первой. Сколько книг находится на второй полке?

 

Геометрия

10. Выберите верные утверждения:

1) Вертикальные углы равны;

2) Две прямые имеют более одной точки пересечения;

3) Сумма смежных углов равна 180.;

4) В равнобедренном треугольнике высота, проведенная к основанию, не является медианой.    

 А) 1,2,4;     Б) 1,3;      В) 1,4;     Г) 1,2,3.

 

11. Луч ОВ является биссектрисой угла АОС. Найдите АОС, если

АОВ=48.

А) 48;        Б) 24;         В) 96;       Г) 45.

 

12. Точка А является серединой отрезка МN. Найдите АN, если МN=8 см.

А) 8 см;            Б) 4 см;             В) 16 см;          Г) 20 см.

 

Написать ответ в №13

13. В равнобедренном треугольнике основание  равно 4 см, а периметр равен 20 см. Вычислите боковые стороны треугольника.

 

Написать подробное решение в №14

14. В треугольниках АВС и MNK  AB=MN, А=М, В=N. Найдите сторону МК и С, если АС=6см, К=76.

 

 

 

 

 

 

 

 

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Краткое описание документа:

                 Критерии оценки полугодового теста

по математике в 7 классе

 

 

1. Материал для теста взят из сборников:

 

1) «Алгебра. 7-9 классы. Тесты для учащихся общеобразовательных учреждений», А.Г. Мордкович, Е.Е. Тульчинская. – М.: Мнемозина, 2011;

 

2) «Геометрия. Тесты. 7-9 классы: Учебно-методическое пособие», П.И. Алтынов. – М.: Дрофа, 2012. 

 

2. В тесте 14 заданий. Задания 1-7, 10-13 оцениваются в 1 балл. Задания 8, 9,14 – в 2 балла.

 

3. Наибольшее количество баллов – 17, из них по алгебре – 11 баллов, по геометрии – 6 баллов.

 

4. Задания 8, 9, 14 с развернутым ответом. Запись только ответа не оценивается. Один балл ставится, если ход решения верный, но произошла вычислительная ошибка или нечёткая цепочка логических рассуждений.

 

5. Тест считается, выполнен, если сделано половина заданий, т.е. более 45%         

по алгебре отметка «5» ставится за 10-11 баллов,

 

                              «4» - за 8-9 баллов,

 

                             «3» - за 5-7 баллов;

 

по геометрии отметка «5» - за 6 баллов,

 

                                 «4» - за 4-5 баллов,

 

                                 «3» - за 3 балла;

 

за весь тест отметка «5» ставится за 15-17 баллов,

 

                              «4» - за 12-14 баллов,

 

                              «3» - за 8-11 баллов.

 

 

 

Ответы

1вариант                                                               2 вариант

    1) Г                                                                       1)  В

 

2) В                                                                      2)Б                     

 

3) А                                                                     3)  Г

 

4) В                                                                      4)  Г

 

5) Г                                                                      5)  А

 

6)       6)А                                                                      6)  Б

 

7)           7) -30                                                                   7)  3

 

8)        8) (2; 1)                                                                8) (2; -1)

 

9)            9)30                                                                     9)  36

 

1       10) Б                                                                     10)  Б

 

1               11) А                                                                     11)  В

 

1              12) Б                                                                     12)  Б

 

1              13) 3см                                                                  13)  8см

 

1              14) 5см, 43                                                           14)  6см, 76

               

                 

 

 

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