12,13,7,10 如何算24点

问题描述:

12,13,7,10 如何算24点

1:(12 × (13 + 7)) ÷ 102:12 × (13 + 7) ÷ 103:12 × ((13 + 7) ÷ 10)4:(12 × (7 + 13)) ÷ 105:12 × (7 + 13) ÷ 106:12 × ((7 + 13) ÷ 10)7:12 ÷ 10 ×(13 + 7)8:(12 ÷ 10) × (13 + 7)9:12 ÷ (10 ÷ ...