Question

5. Resolva as expressões numéricas:
a) 64 - 5 + 23=
b) 198 + (15-7) - 6=
C) 25 – {20 + (18 – (13 + 10)]}=
d) 69 - [26 + (67 - 42)]=​

Answer 1

Explicação passo-a-passo:

64 - 5 + 23=

64+23-5=

87-5= 82

b) 198 + (15-7) - 6=

198+8-6=

206-6=200

C) 25 – {20 + (18 – (13 + 10)]}=

25-{20+18-23}

25-15=10

d) 69 - [26 + (67 - 42)]=

69-[26+25]

69-51=18