(72÷6+128)÷2×9=? 900-(320÷8+480÷6)=? 700+(330-420÷7-136=?

Question

(72÷6+128)÷2×9=? 900-(320÷8+480÷6)=? 700+(330-420÷7-136=?

Answer 1

1)140:2•9=70•9=630
2)900-(40+80)=900-120=780
3)700+(330-60-136)=700+134=834