= 200*9=1800
=545:5= 109
=700*7=4900
= 300:3=100
=700*6= 4200
800:8=100
(115+85)×9=200×9=1800 (500+45)÷5=545÷5=109 (640+60)×7=700×4900 (184+116)÷3=300÷3=100 (670+30)×6=700×6=4200 (720+80)÷8=800÷8=100
