Question

12 4 Calcula.
a) (4 + 8) - (3-9) b) 10 + (8 - 15 +2-6
c) 12-17 + 11 - 14-8) d) 9+(-4-3)
e) (6 - 12 + 2) - (11 - 4 + 2-5)​

Answer 1

a) (4 + 8) - (3-9) =6

b) 10 + (8 - 15 +2-6)=0

c) 12-17 + 11 - 14-8) =-16

d) 9+(-4-3) =1

e) (6 - 12 + 2) - (11 - 4 + 2-5)​ =4