Question

Calcula:
a) (17 – 2) – (8 + 2) b) 25 – [4 – 83 – 9)]
c) (10 – 7) – [11 – (7 – 5) d) 16 – [16 – (16 – 4)] + (–16)

Answer 1

a) (17 – 2) – (8 + 2)=15-10=5

b) 25 – [4 – 83 – 9)]=25-[-88]=25+88=113

c) (10 – 7) – [11 – (7 – 5)=3-[9]= -6

d) 16 – [16 – (16 – 4)] + (–16)=16-[4]-16= -4