Question

-9, -3, -7, +1, 0=
-2, -6, -5, -3, -8=
5, -3, 1, 0, -1, 20=
+25, -3, -18, +15 +8, -9=
+60, -21, -34, -105, -90=
-400, +620, - 840, +1000, -100=

Answer 1

Resposta:

preciso dos pontos mossa isso e só calcular na calculadora

Answer 2

Resposta:

a) -9-3-7+1+0= -18

b) -2-6-5-3-8= -21

c) +5-6-5-3-8= -17

d) +25-3-18+15+8-9= +18

e) +60-21-34-105-90= -190

f) -400+620-840+1000-100= +280