Question

70:14*80810:90*102900-183:3+142:2401-485:5*2

Answer 1

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

Answer 2

1.400
2.918
3.768
4.207