Подборка заданий для отработки темы сложение рациональных чисел 6 класс

1. Сделайте рисунки и найдите значения выражения

4 + ( - 5 ) =  

0 + ( - 6 ) =                             

- 5 + 7 =

- 1 + ( - 4 ) =                              

- 2 + ( - 5) =                             

- 5 + ( - 4) =

2. Выполните сложение

10 + ( - 10 )  =                            0 + ( - 37 ) =                              - 81 + 81 =

 + (  ) =                           + (  ) =                        + (  ) =

- 100 + 0 =                                  -27 + ( - 8 )  =                           -6,1 + ( - 5,9 ) =

 + (  ) + (=           + (  ) =                        + (  ) =

-5 + ( - 14 ) =                                 - 2,6 + ( - 7,8 ) =                  - 8 + ( - 19 ) + (- 14)=

 + (  ) =                    - 120 + ( - 75 ) + ( - 210 ) =            - 75 + 5 =

5 + ( - 12,7 ) =                              82 + ( - 31,7 ) =                              - 0,8 + 2,5 =

-56 + 56 =                                   +   =                                     + (  ) =

15 + ( - 20 ) =                          - 33 + 0 =                                   36 + ( - 87,4 ) =

-29 + ( - 54 ) =                      24,3 + ( - 61,8 ) =                      - 3,1 + (-1,4 + 0,9) =

 3. Сравните выражения

- 25 + (- 40)  и  - 25                                     

-10 и - 33 + ( - 10 )

-24 и - 47 + ( - 73 )                                         

- 167 и - 64 + ( - 102 )

0 и 75 + ( - 120 )                                              

- 510 +914  и 0

- 203+203 и 0                                                   

65 + ( - 101 ) и  0

-5,5 + (- 2,1)  и – 10,4 + 3,2                           

 - 27,6 + 8,8 и – 9,9 + ( - 9,9 )

4. Найдите значение выражения 

а + b +  ( - 12 ), если  а= - 54,   b = - 38.

х + ( - 26 ), если х= - 48.

а +  b + с, если  а= - 30,4;  b = - 15,7;   с= - 24,8.

b + с, если     b =   ;   с= .

5. Угадайте корень уравнения

х + (-3) = 0                                 

х + (-3) = - 1                                 

х + (-3) = 2

х + (-3) = -3                                 

х + (- 4) = - 12                            

х + (-4) = 2