求六年级人教版四则混合运算题120道，最好偶步骤有答案，

1.55*2-6*4
2.20-15*0.5
3.100+150+3*15/5
4.45/3+11*2
5.(0.5/1)*3
6.8*9-3*6
7.(4-2.6)*33
8.12*3/5
9.(55-13)*3*6/3
10.14+4+(8)*3/2
11.8*9/36
12.(4/5+10)*3
13.67-1*2+88-47
14.87*3-55+6/2
15.158-63*6/2
16.5*9-8*7/2
17.55/11*4+3
18.6*3+2-4
19.49+34-2-7*6+3
20.45+3*6
21.373-8
22.76*8-5*8
23.5*9-6/2
24.451+8*3
25.21/3+7*8
26.22*4-3*4
27.96*3-8/2
28.7*8/24*8
29.34/2+56/8
30.45/9+5*6/3*9
31.8-5*4
32.4*8-5/5
33.(58-4)/6*5
34.78/9*3
35.65/5*9+3
36.32*8/2
37.(33+6-5)*9
38.48/12*6-3+2
39.7592*5-4966*4.85
41.876/4+3-22
42.475/5-66+132
43.75/5+45/15
44.88*77/2+64
45.74/2-63
46.475/5+32*4
47.7669*2-1425
48.655/5+3*58
49.416+52*3/5
50.475*33+55/11
51.1/2×2/5＋9/10÷9/20
52.50＋160÷40 （58+370）÷（64-45）
53.120-144÷18+35
54.347+45×2-4160÷52
55.