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1、12.899+12.8
1.253.22.5
3.8+4.29+2.71+6.2
12.5-0.78-3.22
12.6101-12.6
38.52.50.4
0.8810.1-8.80.01
6.5101
4.8598
1.22.5+0.82.5
2817.5-287.5
4.812.5
7.68 - 7.680.5
5.2+4.83.5
4.8+1.05-3.58
1
2、1.23-5.53-3.29
6-4.26+1.79
14.92-(3.92+5.53)
10.18+9.64+15.82
10-(6.29-2.76)
5.9-(2.25+2.56)
7.41-1.25-1.75
0.98+4.09-3.05
8.47-(2.98+5.47)
0.9+9.9+99.9+999.9
9.8+13.7+10.2
3.5+13.9+2.5+6.1
47.6-21.8-19.6
36.8
3、+185.9-85.9
58.2+39.3-29.3
1.251584
6.710.1
2224.4+8.9888
6.3+4.82+3.7-0.82
30710.1
0.4518
132-43.7-56.3
0. 3212.52.5
5.61.25
7.627+7.6174-7.6
7.3+2.7-7.3+2.7
(7.7+15.4)7
9.934
1.51.2+8.81.5
4、
7.124-1.124
4502.52
12.58.8
(125-1.25)0.8
3.50.4+3.50.6
39(1.35)
2.24+0.64
4.835+2.175
3.29+0.73+2.27
3.29-0.73-2.27
7.5+2.5-7.5+2.5
7.325-3.29-3.325
7.325-(5.325+1.7)
7.325-(5.325-1.7)
3.29+0.7
5、3-2.29+2.27
3.290.254
0.1258.8
0.250.28
0.1253.22.5
3540.2
0.2540.254
3.59.9
3.599+3.5
3.5101-3.5
3.59.9+3.50.1
3.52.7+350.73
3.52.7-3.50.7
(32+5.6)0.8
3.50.6-0.50.6
4.93.5
70.254
6、
70.125
7.35(7.350.25)
7.35(7.350.25)
3.07-0.38-1.62
1.29+3.7+2.71+6.3
8-2.45-1.55
23.4-0.8-13.4-7.2
0.32403
3.2+0.36+4.8+1.64
1.23+3.4-0.23+6.6
0.2536
12.7-(3.7+0.84)
36.54-1.76-4.54
0.250.734
7.60.8+0.27.6
0.85199
0.258.54
1.288.6+0.728.6
12.50.960.8
10.4-9.60.35
0.8(4.31.25)
3.12+3.1299
28.6101-28.6
(4.23+6.17)0.8