1-0.3=5.3+0.5=4.7-2.3=0.5×0.2=
4×0.25=1÷0.01=10-0.9=3.6÷0.3=
8.7+3.41=0.01×50=2.5×40=7.2÷0.8=
5.6-4.6=3.8÷1.9=10-5.46=5.89+0.11=

解:
1-0.3=0.7

5.3+0.5=5.8

4.7-2.3=2.4

0.5×0.2=0.1
4×0.25=11÷0.01=10010-0.9=9.13.6÷0.3=12
8.7+3.41=12.110.01×50=0.52.5×40=1007.2÷0.8=9
5.6-4.6=13.8÷1.9=210-5.46=4.545.89+0.11=6

分析:根據(jù)小數(shù)加、減、乘、除的計算方法進行計算.
點評:本題主要考查了學生小數(shù)的計算能力,注意要認真細心.
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