Question

2) Calcule:
a)-2 + 14 =
b) (+3) + (-4) =
c) (+8) + (-3) =
d) +13 -1 =

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Answer 1

Resposta:

Vamos entender!

a)-2 + 14= 12

b) (+3) + (-4)

3 - 4

-1

c) (+8) + (-3)

8 - 3

5

d) +13 -1 = 12

Answer 2

$a) - 2 + 14 = \\ + (14 - 2) \\ 12$

$b)( + 3) + ( - 4) = \\ 3 - 4 \\ - 1$

$c)( + 8) + ( - 3) = \\ 8 - 3 \\ 5$

$d) + 13 - 1 = \\ 12$