3.3.7.5怎么算等于24
问题描述:
3.3.7.5怎么算等于24
答
1:3 × (3 × 5 - 7)
2:3 × ((3 × 5) - 7)
3:3 × (5 × 3 - 7)
4:3 × ((5 × 3) - 7)
5:(3 × 5 - 7) × 3
6:((3 × 5) - 7) × 3
7:(5 × 3 - 7) × 3
8:((5 × 3) - 7) × 3