Question

Me ajudem pfvr
Efetue:
-4 -5 -8 +10 =
-7 +20 -15 +20 -1 =
+8 -10 -7 +13 -14 +5 -6 =
-13 +7 -9 +5 -13 =
-20 +10 -10 +20 +14 -13 -1 =
-8 -10 +17 -3 +4 -7 +8 -1 =
-6 -7 -13 -26 +54 -2 =

Answer 1

Resposta:

a) 1-2=1-3=2

b)4-5=1-8=7+10=17

c)7+20=27-15=12+20=32-1=31

e)13+7=20-9=11+5=16-13=03

f)20+10=30-10=20+20=40+14=54-13=41-1=40

g)8-10=2+17=19-3=16+4=20-7=13+8=21-1=20

Explicação passo-a-passo: