小数乘除法口算详解.docx

小数乘除法口算详解.docx

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小数乘除法口算详解

1.5×4=2.5×4=0.13×4=5.4÷10=0.18×0.3=

4.2×1000=0.45÷0.15=3.6÷0.1=8.5×100=8.5÷1.7=

3.2÷100=1.2÷0.3=

0.49÷7=0.04×25=0.096÷0.03=84÷4.2=1000×0.756=0.5×100=0÷0.25=1÷0.01=

1.25×8=

小数乘除法口算

3.8×2=7.2÷0.9=1.6×0.2=9.3÷0.3=

4÷0.4=0.45÷0.5=0.2÷0.01=0.9×6=2.1×0.3=

7×0.08=1.87×0=

0.24×5=0.2×0.5=60×0.5=

0.05×1.6=0.5×1.1=0.8×0.5=6÷0.12=1.25×4=

4×0.25=0.4÷8=

1.8×0.5=8÷0.5=0.32÷16=

2.5÷10=6.3÷2.1=

0.92÷4=80÷1.6=6.2＋1.7=

0.56÷14=

1.6÷0.8=

6.3÷9=

0.15×8=

7.2÷0.6=

4.2÷1.4=

3.9÷3.9=

0÷6.81=

1.47×0.4=

0.4×0.25＝

3.6÷1.2=

0.72÷0.9=

3÷8=

5.6÷1.4=

4.8÷0.4=

4.4÷4=

2.6÷13=

3.8÷1.9=

7.2÷0.4=

1÷0.25=

0.78÷6=

2.4÷24=

5.5÷11=

6.6÷0.6=

0.18÷2=

34÷0.2=

3.5×4=

2.4－0.6＝

0.62－0.32＝

9.8×0.5＝

0.25×4＝

9.46×10＝

12÷0.6＝

0.4×0.5＝

4.6×5=

9.13＋2.1＝

1÷0.25＝

0.47＋0.34=

9.6÷0.2＝

0.56÷0.8＝

9.13×0＝

53.4÷10＝

5.5＋1.8＝

0.36÷0.4＝

60×0.8＝

1÷0.25＝

1－0.62＝

7－0.23＝

4.3-2.5=0.17+0.06=1.02-0.09=720÷800=

0.17+0.6=0.83-0.6=17×300=0.98-0.09=

0.2+0.78=0.6×0.7=10.2+0.02=0.15+0.7=

6.7+2.5=10.2+0.2=9.2-6.1=8.5÷5=

3.2-3.2=3.7+2.3=2.5×100=3.12-0.32=

2+2.8=3.8-2.9=0.35+0.5=0.35+0.63=

3.5÷70=3.1+3=3.8+0.38=7.5÷25=

3.8+1=0.95-0.05=4.5+7.8=3.1+0.3=

3+0.3=6.3÷9=4.5-0.4=9.5-5=

1.1×9=9.53-1.53=9.5-0.5=3.5+2.4=

1-0.95=0.3+0.27=0.47+0.13=4.5+4=

4-0.6=0.95+0.05=2.5+3.2=0.74+0.16=4.8÷40=53÷100=5.1+2.3=1.25×80=

0.78÷10=0.52+0.4=7×1.2=0.25×100=

3.4-2.8=0.6-0.37=0.052×10=10+0.08=

1-0.75=0.5×1000=7.82+0.3=13.5+6.5=

3.05×100=1.2-0.8=21.6-12.6=63÷100=

0.83-0.5=0.76+0.14=80÷1000=2.7+0.4=

0.72-0.42=0×10.5=0.92-0.2=3.5+4.8=

3.5+2.4=5+0.07=1-0.61=0.47+0.23=0.25+0.75=3.7+0.33=0.51+0.33=1-0.6=

8-4.6=5.8-3.6=0.52+0.4=6.45+5.5=

4.5-1.3=3.4-2.8=9.53-1.53=8.8-6.7=

10+0.08=9.5-7.3=7.2+0.8=7.82+0.3=

8.8-6.7=1-0.95=

3.4-2.8=0.96-0.35=

9.53-1.53=0.25+0.75=1.2-0.8=0.83-0.5=2.7+0.4=0.77÷11=

3.56×10=

0.9×7=

30.5÷5=

8×0.04＋3=

5.3×0.1=

41.2＋21=

5.66÷0.2=

8.4÷0.7=

501－98=

0.1×9.02=

110÷100=

1.01×9=

3.1×10=

125×7＋125=

0.65×5=

0.1×7=

32.5÷0.5=

2.58÷0.2=

0.7＋7.32=

480＋199=

63÷0.7=

4×1.8=

0.3＋4.44=

2.01×7=

10÷8=

0.8＋7.62=

0.12×8=4.2÷0.1=

1.6×3=1.2×0.6=100÷200=6.2×0.3=

0.6×0.7=2.8÷70=0.9×0.4=2.1÷7÷0.1=

5×2.1=2.5×4×0.5=50×0.04=

3.4÷0.1=

6.9÷3=100×2.5×0.4=

1.26＋0.74=

2.34－1.34=

6.3÷9=

8.2÷1.9=

1.26＋0.74=

9÷5=

1－0.25－0.75=

1.6－0.9=

3.44＋0.56=

1.2÷4=

3.1＋2.5＋0.9=

6.8－2.9=

4.2－0.8=

7.34÷2=

9.7×2＋0.3×2=

125×4=

0.6×9=

5.4÷1.8=

38×0.01＋0.02=

2.7÷30=

1.01×5=

510÷100=

（1.2＋0.6）×0.1=

7.4－2.4=

3.7＋4.2=

2.4×3=

34×567×0=

3.2÷0.04=

0.54÷0.9=

0.4×2.5=

3.6＋5.8＋4.2=

0.15÷0.3=

3.18×100=

41×0.4=

0.86÷0.2=

0.08＋5=

1.8×30=

80×0.4=

0.03÷0.01＋0.3=

1.2÷6=

6.4÷4=

3.6÷40=

（1.5＋0.5）÷2=

3.2÷1.6=

7－0.16=

9.9÷3=

9.8－2.9－3.1=

8×20÷5=0.8×1.25×15=

4－3.2＝

1－0.99＝

4.1＋4.14＝

0.6＋0.8＝

0.81÷0.9=

1÷0.01=

0.9÷0.45=

0.48÷0.24=

1.8＋0.9＝

0.28＋0.2＝

6.5－5.6＝

9.65－5＝

1.6÷0.04=

0.24×0.5=

1.85×0.1=

1.2×0.7=

0.09÷3=

4.9÷7=

0.86－0.6＝

0.58－0.41＝

4.2×2=

1.1×3=

0.32＋0.21＝

7.2＋2.8＝

10×0.35=

0.06×100=

0.57－0.27＝

0.86－0.4＝

0.74+0.54＝

0.32+0.21=

12.3÷10=

6.53÷100=

12÷100=

0.16÷10=

1－0.42＝

5.2＋3.5＝

0.61－0.3＝

0.8－0.08＝

3.6÷6=

8.4÷4=

0.64÷8=

0.6×8=

2.4÷8=

0.06÷3=

20×0.5=

1000×0.09=

6.6＋1.4＝

3.9－2＝

0.837－0.837＝7.3＋1.7＝

0.35÷7=2.8×4=0.5×0.5=2.5×10=

0.06×0.9=0.05×1.6=0.5×0.05=0.3×0.03=

3.6÷0.3=0.54÷0.6=0.12÷0.4=0.45÷0.5=

0.25×4=

2.5×0.4=

1.25×0.8=

12.5×0.8=

8.5－2.9＝

4.8－4＝

3.8＋4.02＝

3.42＋0.48＝

3.7÷0.1=

2÷0.2=

1.2÷0.03=

0÷1.8=

1.08－0.8＝

2－0.01＝

7.51＋1.49＝4.6＋3＝

0.8×0.25=

110×0.1=

15÷0.5=

0.32÷0.004=

8.1÷0.3=

0.92×0=

0.1×0.001=

0.8÷0.02=

3.6÷2.4=

0.2×1.8=

4-2.56=1.57+4.02=9.94-5.83=2.4×3=

24×0.03=

5.6+0.24=

14.7＋3.89－4.7＝4.56＋9.1＋0.44＝4.2-3.5=

1.76＋2.83＋0.24＝6.26－3.65－1.35＝1.74+3.26=

1.2-0.9=

0.54÷0.6=

0.26×0.3=

1÷0.05=

20×0.4=

2.8+10.2=

7-0.9=

0.55+0.3=

0.8+0.2=

16÷0.4=

0.14×5=

2.5×4=

15.3-10=

3.3+7=

6÷10=

0.86+2.14=

0.37+4=

3.2÷0.8=

0.45+0.55=

6.4÷8=

0.1×9.2=

11÷100=

1.01×9=

3.1×10=

0.65×5=

0.1×7=

32.5÷0.5=

2.58÷0.2=

0.7＋7.32=

6.3÷7=

8×1.8=

0.3＋4.44=

2.08×7=

10÷8=

0.8＋7.62=

0.12×8=

4.2÷0.1=

1.6×3=

1.2×0.6=

100÷200=

6.2×0.3=

0.6×0.7=

2.8÷70=

0.9×0.4=

2.1÷7÷0.1=

5×2.1＋2.1=

2.5×4×0.5=

50×0.04＋420=

3.4÷0.1－21=

100×2.1×0.03=

6.3÷9=9÷5=

4.3＋2.7＝

0.75＋0.25＝

4－0.26＝

0.35＋2.7＝

4.6－1.9＝

0.83－0.3＝

3＋0.05＝

7.2－3.8＝

0.07＋0.6＝

1.39－0.39＝

10－5.4＝

8.2÷1.9=

1.2÷4=

3.44＋0.56=

6.8－2.9=

0.6×9=

4.2－0.8=

7.34÷2=

5.4÷1.8=

2.7÷30=

7.34－2.14=

1.01×5=

510÷100=

3.74＋4.26=

2.4×8=

3.2÷0.04=

0.54÷0.9=

0.4×2.5=

0.16÷0.3=

3.18×100=

41×0.4=

0.86÷0.02=

0.08＋5=

1.8×30=

800×0.4=

1.2÷6=

3.6÷40=

3.2÷1.6=

7－0.16=

4.08＋0.3=

9.3－3.5=

190÷0.2=

3.6÷0.3=

1.2×0.4=

50.5÷5=

4.2－0.8=

0.8×0.4=

0.8÷0.1×0.5=

2.8÷0.7×20=

555÷0.5=

3.26÷2×0.01=

（5.1－2.7）÷0.6=

7.4＋3.6=

2.5×40=

1.35×20=

0.56÷0.28=

6.1－2.08=

5.2×8=

7.2÷40=

4.3÷0.01=

0.06×0.8=

6.52－5.12=

3.6＋1.8=

0.54×4=

0.72÷8=

9÷2=

50×0.3=

0.12×100=

6－2.09=

1.8×4=

12－6.2=

7×0.8=

10.1×6=

9.6－0.7－0.3=

1.25×8×0.74=

1.8＋2.2＋6.4=

0.6×5＋0.4×5=4.27－0.6－0.4=

3.6＋0.8＋0.2=

8.54－1.7－2.3=

1.05×0.7=

0.42＋0.58=

40.3－9=

42.5÷5=

80÷0.4=

0.75×0.2=

7×0.6=

7.2÷0.5=

80－2.6=

7.8－6.65=

4.02×300=

9.8×10=

12×0.5=

6.1÷2=

6.8＋3.2=

100－32.5=

2.5÷25=

0.9＋0.99=

400÷0.1=

4.5×3=

3.1×0.5=

0.83＋0.2=

2.02×9=

30.3÷3=

2.74÷2=

6÷0.02=

2.76－0.36=

0.06×0.9=

5.8＋3.4=

32＋0.7=

25×0.01=

4.1×0.5=

19.04÷2=

0.74－0.24=

36.05÷5=

4.7＋1.9=

3.46×11=

3.2÷64=

8.1÷3=

8.4－2.7=

24.32÷8=

0.9×0.6=

0.8÷0.04=

0.364×100=

16÷1.6=

7.8＋0.2=

2.4÷4.8=

0.125×8=

7－1.34=

32×0.25=

9×0.36=

0.37×10=

2.9×0.6=

0.8×0.7=

5.3－2.9=

2.8＋13.5=

17.2＋2.8=

8.4÷4.2=

1.7×3=

8.3－3.3=

3.6＋6.4=

0.84÷6=

0.7×5=

5.5＋3.6=

500×1.2=

12×0.5=

16÷1.6=

5.4÷1.8=

25×0.04=

10－5.6=

1.25×80=

1.23÷3=

8－2.6=

63÷0.09=

6.2÷0.2=

7.8＋2.2=

5.4÷0.9=

0.44×2=

0.25×40=

0.2×0.5=

3.1×0.5=

0.83＋0.2=

2.02×9=

30.3÷3=

7.6－0.7－0.3=

3.6＋6.4=

8.3－3.3=

0.4×2.5=

0.16÷0.3=

3.18×100=

41×0.4=

0.86÷0.02=

0.08＋5=

1.8×30=

800×0.4=

1.2÷6=

3.6÷40=

3.2÷1.6=

7－0.16=

9.9÷3=

5.2×8=

7.2÷40=

4.3÷0.01=

0.06×0.8=

6.52－5.12=

3.6＋1.8=

0.54×4=

12×0.5=

6.1÷2=

6.8＋3.2=

100－32.5=

2.5÷25=

0.9＋0.99=

400÷0.1=

4.5×3=

3.1×0.5=

0.83＋0.2=

2.02×9=

30.3÷3=

2.74÷2=

6÷0.02=

2.76－0.36=

0.06×0.9=

5.8＋3.4=

32＋0.7=

25×0.01=

4.1×0.5=

19.04÷2=

0.74－0.24=

36.05÷5=

4.7＋1.9=