Question

a) +8-10-7+13-14+5-6=
b) -13+7-9+5-13=
c) -20 +10 -10+20 +14 -13-1=
d)- 8- 10+ 17- 3+ 4- 7+ 8- 1=
e)-6-7-13-26+54-2=​

Answer 1

Resposta:

a) +8 +13 +5 - 10 -14 -6

+ 26 - 30 = - 4

b) - 13 - 9 + 7 +5

- 22 + 12 = - 10

c) _20 - 10 -13 -1 + 10 +20 + 14

_ 44 + 44 = 0

Answer 2

a) +8-10-7+13-14+5-6 =

-2-7+13-14+5-6 = -9+13-14+5-6 = 4-14+5-6 = -10+5-6 = -5-6 = -11

b) -13+7-9+5-13 = -8-9+5-13 = -15+5-13 = -10-13 = -23

c) -20 +10 -10+20 +14 -13-1 = -10-10+20+14-13-1 = -20+20+14-13-1 = 14-13-1 = 0

   

d) -8-10+17-3+4-7+8-1 = -18+17-3+4-7+8-1 = -1-3+4-7+8-1 = 0-7+8-1 = 1-1 = 0

   

e) -6-7-13-26+54-2 =  -13-13-26+54 = -26-26+54 = -52+54 = 2