Question

Calcule as adições e subtrações

a) (+5)+(–8)
b) (–2)-(–3)
c) (–3)-(–9)
d) (–7)-(–8)
e) (–8)+(–6)-(–7)
f) (–4)+(–6)+(–3)
g) 15–3-(–1)
h) 32-(+1)-(–5
i) 8-(+4 - 1)

Por favor me ajudem se puderem​

Answer 1

Resposta:

a) (+5)+(–8)  = 5 - 8 = -3

b) (–2)-(–3)  = -2 + 3 = 1

c) (–3)-(–9)  = -3 + 9 = 6

d) (–7)-(–8)  = -7 + 8 = 1

e) (–8)+(–6)-(–7)  = -8 - 6 + 7 = -7

f) (–4)+(–6)+(–3)  = -4 - 6 - 3 = -13

g) 15–3-(–1)  = 15 - 3 + 1 = 13

h) 32-(+1)-(–5 ) = 32 - 1 + 5 = 36

i) 8-(+4 - 1) = 8 - 4 + 1 = 5

Espero ter ajudado! (❁´◡`❁)