Question

1 ) Calcule : a) ( + 8 ) + ( - 5 ) = b) ( + 15 ) + ( - 3 ) = c) ( + 10 ) + ( - 4 ) = d) ( - 12 ) + ( + 20 ) = e) ( - 30 ) + ( + 10 ) = f) ( + 1 ) + ( - 8 ) = g) ( + 3 ) + ( - 10 ) = h) ( - 4 ) + ( + 1 ) = i ) ( - 8 ) + ( + 5 ) = j) ( - 3 ) + ( + 3 ) = k ) ( + 2 ) + ( - 9 ) + ( - 8 ) = l) ( - 5 ) + ( - 2 ) + ( + 3 ) = m ) ( - 12 ) + ( - 9 ) + ( + 1 ) = n ) ( - 8 ) + ( + 10 ) + ( - 15 ) + ( -20 ) = o ) ( + 10 ) - ( - 9 ) = p ) ( 13 - 4 ) - 8 = q) 12 - ( 7 - 3 ) = Me ajudem por favor dou 40 pontos para quem ajudar.

Answer 1

Resposta:

a)+3

b)+12

c)+6

d)+8

e)-20

f)-7

g)-7

h)-3

i)-3

j)0

k)-7

l)-4

m)-20

n)-3

o)+1

p)1

q)8

Explicação passo-a-passo: