Question

7. Calcula.
Solu
a) 5. (-4) +2.(-3) =
b) 20 :(-5) - 8:(+2) =
c) 2. (-8) -3.(-7)-4. (+3) =
d) 6 :(+2)+5.(-3) -12:(-4) =​

Answer 1

Explicación paso a paso:

a) 5. (-4) +2.(-3) =

- 20 - 6 =

-26

b) 20 :(-5) - 8:(+2) =

- 4 - 4 =

-8

c) 2. (-8) -3.(-7)-4. (+3) =

-16 + 21 - 12 =

- 28 + 21 =

- 7

d) 6 :(+2)+5.(-3) -12:(-4) =

3 - 15 + 3 =

6 - 15 =

- 9