Question

70:14*80
810:90*102
900-183:3+142:2
401-485:5*2

Answer 1

1.400
2.918
3.768
4.207

Answer 2

1. $frac{70}{14} *80=400$

2. $frac{810}{90} *102=918$

3. $900-frac{183}{3} +frac{142}{2} = 900-61+71=910$

4. $401-frac{485}{5} *2= 401-194=207$