2 4 7 5 算24点怎么算
来源:百度知道 编辑:UC知道 时间:2024/07/07 19:34:49
大家帮一下
(4-2)*(7+5)=24
1: (4 - 2) × (5 + 7)
2: 4 ÷ 2 ×(5 + 7)
3: (4 ÷ 2) × (5 + 7)
4: 4 ÷ (2 ÷ (5 + 7))
5: (4 - 2) × (7 + 5)
6: 4 ÷ 2 ×(7 + 5)
7: (4 ÷ 2) × (7 + 5)
8: 4 ÷ (2 ÷ (7 + 5))
9: (4 × (5 + 7)) ÷ 2
10: 4 × (5 + 7) ÷ 2
11: 4 × ((5 + 7) ÷ 2)
12: (4 × (7 + 5)) ÷ 2
13: 4 × (7 + 5) ÷ 2
14: 4 × ((7 + 5) ÷ 2)
15: (5 + 7) ÷ 2 × 4
16: ((5 + 7) ÷ 2) × 4
17: (5 + 7) ÷ (2 ÷ 4)
18: (5 + 7) × (4 - 2)
19: (5 + 7) × 4 ÷ 2
20: ((5 + 7) × 4) ÷ 2
21: (5 + 7) × (4 ÷ 2)
22: (7 + 5) ÷ 2 × 4
23: ((7 + 5) ÷ 2) × 4
24: (7 + 5) ÷ (2 ÷ 4)
25: (7 + 5) × (4 - 2)
26: (7 + 5) × 4 ÷ 2
27: ((7 + 5) × 4) ÷ 2
28: (7 + 5) × (4 ÷ 2)
4*5+7-2-(5-4)=24
不知道规则是否正确,我是绞尽脑汁,才想出来的。太难算了!!!!!!!!!唉……我只能这样了。
(7+5)*4/2
(4-2)*(5+7)=24
2, 5, 7 ; 4, 7, 5 ; 3, 6 ,_
1+2+3+4+5+6+7+...............
1,4,3,5,2,6,4,7,( )
求交集A{7,8,7,7,7,7,8,5,4,2,2,5,4,,9}与B{7,5,4,6,2,3,7,7,,7,8,9}用C++
2---3,2---5---3,2---2/7---5---4---3,下面该是多少
1+1*2+2*3+3*4+4*5+5*6+6*7+7......*100+100
2 4 3 9 5 20 7(?)
1 2 3 4 5 6 7 8=1
1+2-3-4+5+6-7-8+...........+2002=?
简便运算1+2+3+4+5+6+7+..................................+10000