Question

1) (+7)*(-4) 2) (+15)*(-3) 3) (-8)*(-6) 4) (-6)*(-9) 5) (-42):2 6) -30:(-10) 7)64:(-4) 8)-270:(-30)

Answer 1

Ответ:

1) - 28

2) -45

3) 48

4 54

5 -21

6) 3

7) -16

8 9

Answer 2

1. -(7*4)=-28
2. -(15*3)=-45
3.8*6=48
4.6*9=54
5.-(42:2)=-21
6.30:10=3
7.-(64:4)=-16
8.270:30=9

Answer 3

Let's solve these arithmetic expressions one by one:

1. (+7) * (-4) = -28
2. (+15) * (-3) = -45
3. (-8) * (-6) = 48
4. (-6) * (-9) = 54
5. (-42) ÷ 2 = -21
6. -30 ÷ (-10) = 3
7. 64 ÷ (-4) = -16
8. -270 ÷ (-30) = 9

These are the results of the given arithmetic expressions.