a) 5(5+2)=5•7=35 <=>25+10=35
b) (3+2+4)10=9•10=90 <=> 30+20+40=90
c) 8(6-3)=8•3=24 <=> 48-24=24
d) (5+1+2)9=8•9=72 <=> 45+9+18=72
e) (2+4)9=6•9=54 <=> 18+36=54
f) 8(7-3)=8•4=32 <=> 56-24=32
g) (5-3)6=2•6=12 <=> 30-18=12
h) 10(4+3-2)=10•5=50 <=> 40+30-20=50
