30题
1.2+2.8=4
1.5+3.6=5.1
22.5+23=45.5
0.125+0.348=0.473
0.65+2.35=3
4.27+3.15=7.42
3.24+1.157+0.163=4.54
0.12+3.16=3.28
0.124+3.15=3.274
22.26+3.16=25.42
0.14+10.46=10.6
1.238+0.152=1.39
4.12+5.18=9.3
10.56+12.44=23
10.2+0.8+10.58=21.58
0.23+0.37+12.35=12.95
5.24+5.28+4.44=14.96
0.14+0.26=0.4
3.5+2.4+3.1=9
4.2+5.6+4.9=14.7
1.5+3.6=5.1
22.5+23=45.5
0.125+0.348=0.473
0.65+2.35=3
4.27+3.15=7.42
3.24+1.157+0.163=4.54
0.12+3.16=3.28
0.124+3.15=3.274
22.26+3.16=25.42
0.14+10.46=10.6
1.238+0.152=1.39
4.12+5.18=9.3
10.56+12.44=23
10.2+0.8+10.58=21.58
0.23+0.37+12.35=12.95
5.24+5.28+4.44=14.96
0.14+0.26=0.4
3.5+2.4+3.1=9
4.2+5.6+4.9=14.7
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第1个回答 2010-08-17
12.56-6.28=6.28
18.84-9.42=9.42
18.84-9.42=9.42
第2个回答 2010-08-17
5.2-3.1=2.1 5.3+5.895=11.295
第3个回答 2018-08-09
不可能，小学生
第4个回答 2018-05-30
6.37694676876767877634784833888457342
