Question

1 calcule
a}1+2
3 5
b]3+2
2 3
c}2-7+3
6 4
d}7+2
2 3
e}2+11+1
5 2 3

Answer 1

a)3 +3=6+5=11

b5+2=7+3=10

c) 6+2=8+2=10+3=13

d) 8+2=10+3=13
e)13+1=14+5=19+2=21+3=24