Question

2 7 7 10算24点

Answer 1

1:(2 + 10 ÷ 7) × 7

2:(2 + (10 ÷ 7)) × 7

3:7 × (2 + 10 ÷ 7)

4:7 × (2 + (10 ÷ 7))

5:7 × (10 ÷ 7 + 2)

6:7 × ((10 ÷ 7) + 2)

7:(10 ÷ 7 + 2) × 7

8:((10 ÷ 7) + 2) × 7