Question

2) Resolva as expressões numéricas.
a) 25 – 10 – 23 +1 = b) 70 -12+ 5 - 2-1-6 = c) – 8 + 2 -15 - 4+1 =

Answer 1

a) 25-10-23+1
15-23+1
-8+1
-7

b) 70-12+5-2-1-6
75-21
54

c) -8+2-15-4+1
3-27
24