四年级下册数学口算题卡全部答案
第1个回答 2017-05-18
2+9=10.5+67+7.2
5.43-3.44
2.2+1.4+20= 20.5
175-0.4
20.5+4= 53.3
50-1.06=2.08+11=13.4=4.6=13.4
2.37
3+1.2+16+3.4
6.8+1.2=4.089
0.56=174.2
01.3-8=12.12
1.8=26
14-0.12+5=5本回答被网友采纳
5.43-3.44
2.2+1.4+20= 20.5
175-0.4
20.5+4= 53.3
50-1.06=2.08+11=13.4=4.6=13.4
2.37
3+1.2+16+3.4
6.8+1.2=4.089
0.56=174.2
01.3-8=12.12
1.8=26
14-0.12+5=5本回答被网友采纳