4 7 8 2=24

来源：百度知道编辑：UC知道时间：2024/06/07 16:17:27

括号里填上适当的运算符号

4×7=28
8÷2=4
28-4=24

2×7=14
14-8=6
4×6=24

1: 4 × 7 - 8 ÷ 2
2: (4 × 7) - 8 ÷ 2
3: 4 × 7 -(8 ÷ 2)
4: (4 × 7) - (8 ÷ 2)
5: 4 × (7 × 2 - 8)
6: 4 × ((7 × 2) - 8)
7: 4 × (2 × 7 - 8)
8: 4 × ((2 × 7) - 8)
9: 7 × 4 - 8 ÷ 2
10: (7 × 4) - 8 ÷ 2
11: 7 × 4 -(8 ÷ 2)
12: (7 × 4) - (8 ÷ 2)
13: 7 × 8 ÷ 2 - 4
14: (7 × 8) ÷ 2 - 4
15: (7 × 8 ÷ 2) - 4
16: ((7 × 8) ÷ 2) - 4
17: (7 × (8 ÷ 2)) - 4
18: 7 × (8 ÷ 2) - 4
19: (7 × 2 - 8) × 4
20: ((7 × 2) - 8) × 4
21: 7 ÷ 2 × 8 - 4
22: (7 ÷ 2) × 8 - 4
23: (7 ÷ 2 × 8) - 4
24: ((7 ÷ 2) × 8) - 4
25: (7 ÷ (2 ÷ 8)) - 4
26: 7 ÷ (2 ÷ 8) - 4
27: 8 × 7 ÷ 2 - 4
28: (8 × 7) ÷ 2 - 4
29: (8 × 7 ÷ 2) - 4
30: ((8 × 7) ÷ 2) - 4
31: (8 × (7 ÷ 2)) - 4
32: 8 × (7 ÷ 2) - 4
33: 8 ÷ 2 × 7 - 4
34: (8 ÷ 2) × 7 - 4
35: (8 ÷ 2 × 7) - 4
36: ((8

4 7 8 2=24 1 2 3 4 5 6 7 8=1 1+2-3-4+5+6-7-8+...........+2002=? 1+2+3+4+5+6+7+8+.......+100=？观察下列算式：5^2-3^2=8*2；9^2-7^2=8*4；15^2-3^2=8*27；11^2-5^2=8*12；15^2-7^2=8*22…… 找规律:5^2-3^2=8*2, 9^2-7^2=8*4, 15^2-3^2=8*27 找规律5^2-3^2=8*2;9^2-7^2=8*4;15^2-3^2=8*27 2^a=3,4^b=5,8^c=7,求8^(a+c-2b)的值 5*5-3*3=8*2,9*9-7*7=8*4,15*15-3*3=8*27,11*11-5*5=8*12,15*15-7*7=8*22的规律集合A={1，2，3，4，5}，B={6，7，8}