1.3/7 Ã 49/9 - 4/3
2.8/9 Ã 15/36 + 1/27
3.12Ã 5/6 â 2/9 Ã3
4.8Ã 5/4 + 1/4
5.6÷ 3/8 â 3/8 ÷6
6.4/7 Ã 5/9 + 3/7 Ã 5/9
7.5/2 -ï¼ 3/2 + 4/5 ï¼
8.7/8 + ï¼ 1/8 + 1/9 ï¼
9.9 Ã 5/6 + 5/6
10.3/4 Ã 8/9 - 1/3
11.7 Ã 5/49 + 3/14
12.6 Ãï¼ 1/2 + 2/3 ï¼
13.8 Ã 4/5 + 8 Ã 11/5
14.31 Ã 5/6 â 5/6
15.9/7 - ï¼ 2/7 â 10/21 ï¼
16.5/9 Ã 18 â 14 Ã 2/7
17.4/5 Ã 25/16 + 2/3 Ã 3/4
18.14 Ã 8/7 â 5/6 Ã 12/15
19.17/32 â 3/4 Ã 9/24
20.3 Ã 2/9 + 1/3
21.5/7 Ã 3/25 + 3/7
22.3/14 ÃÃ 2/3 + 1/6
23.1/5 Ã 2/3 + 5/6
24.9/22 + 1/11 ÷ 1/2
25.5/3 Ã 11/5 + 4/3
26.45 Ã 2/3 + 1/3 Ã 15
27.7/19 + 12/19 Ã 5/6
28.1/4 + 3/4 ÷ 2/3
29.8/7 Ã 21/16 + 1/2
30.101 Ã 1/5 â 1/5 Ã 21
31.[(5.84-3.9)/0.4+0.15]*0.92
32.4.38/(36.94+34.3*0.2)
33.(284+16)*(512-8208/18)
34.5.4/[2.6*(3.7-2.9)+0.62]
35.[(7.1-5.6)*0.9-1.15]/2.5
36.32.52-(6+9.728/3.2)*2.5
37.5.8*(3.87-0.13)+4.2*3.7
38.8/9*[15/16*(7/16-1/4)/1/2]
39.[5 1/2-1.04*(1 2/3+5/6)]/2.9
40.6 3/7 /3/7-[(7-0.5)*1/4]
41.(0.75+0.2)/0.25*25%+12/0.75+7.2/2.4
42.1.21*42-(4.46+0.14)*1375+450/18*25
43.1+0.45/0.9-0.75-168.1/(4.3*2-0.4)
44.605*8+3.5-44+10.9-(6.6+0.125/12.5%)
45.56*ï¼56-65ï¼*[0.325-62/30+ï¼56/8ï¼-65 ]
46.4/7*5/9 + 3/7*5/9-3/4 Ã 8/9 - 1/3
47.50ï¼160/40 *ï¼58+370)/ï¼64-45ï¼
48.347+45Ã2-4160÷52
49.6-1.6÷4+ 5.38+7.85-5.37
50.5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
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