Question

1- Efetue as adições :
a) (+ 7 ) + ( - 2 ) =
b) (- 3) + (+4) =
c) (+ 4) + (- 6 ) =
d) (+ 5) + (- 5 ) =
e) ( - 2 ) + ( -1 ) =
f) (+ 1) + (+ 4) =
ajuda prfvvvvvvvvvvvvvvvvvvvvvvv

Answer 1

a)

7 - 2

5

b)

4 - 3

1

c)

4 - 6

- 2

d)

5 - 5

0

e)

- 2 - 1

- 3

f)

1 + 4

5

Resposta:

a) 5

b) 1

c) - 2

d) 0

e) - 3

f) 5