зделайтеее пжжж очень сроочноо!!!​

Ответ:

.

1) -2 + (-4) = -6

2) -0.37 + (-0,94) = -1.31

3) -4.72 + (-0.8) = -4.8

4) + () =

5) + () =+() ==

6) +()=+()===

1) -14 + 8 = -6

2) -2.7 + 6.4 = 3.7

3) 16.8 + (-9.5) = 16.8 - 9.5 = 7.3

4) 7.23 + (-18.4) = - 11.17

5) -9.4 -9.4 = - 18.8

6) -1 + 0.837 = 0.163

7) -5/6 + 7/8 = -40/48 + 42/48 = 2/48 = 1/24

8) +( ) = +() =

9) +=+=+==

1) (16.23 + (-1.7)) + (-12,41) = 14.53 + (-12,41) = 2,12

2)