四年级数学下册小数加减法练习题精选70.docx

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四年级数学下册小数加减法练习题精选70.docx

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四年级数学下册小数加减法练习题精选70.docx

四年级数学下册小数加减法练习题精选70

一、口算。

1.2-0.4=8.5+8.5=45.9-9=0.72+0.33=

3+0.9=8.6+0.6=9.2+2.7=0.76+0.46=

7-0.7=6.6+2.7=79.2-7=0.73-0.46=

2.7-0.8=8.4+0.6=9.3+3.1=0.5-0.43=

3.3-0.5=8.8+7.5=99.4-1=0.72-0.25=

二、笔算。

4.73+0.89=96-2.45=7.8+5.43=64.2-23.7=

9.41-2.77=24.19-3.11=9-0.01=50.47+6.29=

5.75-0.21=71.71+3.21=7.22+3.76=51.4-22.3=

9.81+2.05=68.56+3.32=5.7+0.88=61.42+9.68=

一、口算。

4.1-0.9=9+1.6=53.2-1=0.92+0.42=

4+0.1=6.1-2.5=9.1-4.2=0.55+0.22=

5+0.2=8.7+0.1=41.3+5=0.72-0.17=

4.2-0.1=7.3-1.8=9+0.8=0.64-0.02=

2.7-0.4=1.2+5=39.4-6=0.67+0.02=

二、笔算。

9.73-0.07=13.03+5.32=7.21+1.71=69+40.9=

7.59-4.77=10.95+3.06=2.37+0.22=55.93-9.5=

9.04+0.08=42.08-6.86=9.3+6.47=63.6+20.7=

7.77-1.25=50.51+1.22=6.74-0.43=20.32-2.2=

一、口算。

2.5-0.7=7.2+6.4=74.8-2=0.99-0.04=

7.4+0.3=9+0.3=9.1+3.1=0.84-0.25=

4.4-0.5=4.9+2.8=43.8-9=0.58-0.26=

5.1-0.1=8.7-1.2=9.1-4.6=0.71-0.05=

4.7-0.5=7.4+1.7=27.9-9=0.92+0.06=

二、笔算。

2.97+0.67=81.36-1.94=8.1-6.51=70.8-6.3=

8.1+6.03=37+3.49=4.94+0.27=81.83-9.71=

3.78-0.86=53.04+5.2=9.83-1.34=64.4-45.9=

8.63+5.77=68.76-9.99=4.15-0.98=65.73+7.32=

一、口算。

6.4-0.6=2+8=54.7+1=0.92+0.05=

5-0.2=8.6-0.2=8.9+3.3=0.55-0.41=

2.7-0.2=8.8+1.4=80.7+1=0.54+0.31=

5.5+0.2=5.6+3.1=8.7+1.9=0.61-0.17=

5.6+0.9=1.4+5.6=93.2-3=0.91-0.09=

二、笔算。

2.51+0.53=64.9+2.46=8.62+6.19=60.8-23=

8.43+3.6=82.49+9.9=6.65+0.96=55.62-9.15=

3.75-0.05=48.23-6.83=8.87-3.23=64.5-13=

8.94+4.66=80.86+7.45=8.8-0.16=75.64-6.16=

一、口算。

1.5-0.2=3.3+7.4=88.1+5=0.8+0.24=

8.7+0.2=9.2+2.3=8.5-5.9=0.92-0.01=

9-0.7=2.6+5.8=11.6-7=0.97+0.44=

8-0.3=8.1-4.2=6.9+4.9=0.74+0.04=

1.2+0.8=7.7+7.6=66.7+1=0.56+0.45=

二、笔算。

1.21-0.39=37.41-5.47=7.16+6.77=73.8-48.1=

8.01-4.33=10.25+9.41=1.96-0.32=50.11-5.51=

2.32-0.15=54.77-4.11=8.84-5.43=94-6.9=

9.7+3.34=42.29-8.87=7.81+0.76=18.65+3.43=

一、口算。

3+0.2=6.3+5.4=89.3-7=0.66-0.3=

5-0.6=6.6+1.1=8.7+2.4=0.77-0.1=

4.9-0.7=4.3+1.3=21.5+5=0.81-0.32=

8.6+0.1=6.2+2.6=6.7+3.7=0.89+0.3=

8.3-0.2=8.3+8=87.4+7=0.99+0.39=

二、笔算。

1.11-0.25=44.66-5.27=7.8-2.23=80.6+27.3=

7.27+6.29=81.27-6.24=7.47+0.15=41.78+7.89=

7.1+0.92=44.93+5.79=7.98+5.59=91.5-37.6=

7.17+2.54=32.82+4.15=5.65+0.92=64.34-2.13=

一、口算。

6.8-0.8=1.8+6=80.5-2=0.61-0.48=

2.4-0.6=5.3-2.5=6.6-1.8=0.86+0.49=

7.8-0.2=9.4+7.9=39.5-2=0.73-0.49=

2.7+0.6=9.5-3.8=9+1.7=0.59-0.45=

8.6+0.3=1.6+0.1=23.6+9=0.91-0.38=

二、笔算。

3.46+0.58=43.35-3.66=9.17-4.42=57.5+32.9=

7.6+1.27=59.11+4.08=6.5+0.6=23.21+3.4=

6.15-0.38=29.77+6.17=7.86+2.82=51.5-27.2=

8.75+3.72=94.53+9.21=5.18+0.39=42.59+4.28=

一、口算。

5.8-0.9=3+0.7=54.7-3=0.5-0.03=

2.5+0.8=9.5-1.8=6.4-5.7=0.91+0.26=

8.4+0.5=7+4.9=72.5+2=0.87-0.06=

7.9-0.1=5.6+3.3=6.3+1.1=0.87-0.44=

8.2+0.2=5+1.5=35.5+2=0.79-0.17=

二、笔算。

1-0.46=58.3-1.28=9.82-2.64=96.6-24.4=

9.1+5.97=19.93-3.92=5.62-0.01=65.94+6.38=

8.34+0.4=35.35+9.97=8.31+2.04=96.3-15.3=

9.08-5.42=77.83+6.69=7.75-0.16=65.79+1.84=

一、口算。

5.6-0.5=8+1.2=27.3-7=0.58-0.27=

3.7-0.6=6.2+2.5=7+1=0.8+0.09=

8.3+0.1=9.4+9.4=76.6+2=0.67+0.19=

5.4-0.2=7.2-3=7.2-0.2=0.78-0.4=

2+0.6=7.5+3.7=54.4+7=0.61+0.45=

二、笔算。

5.2-0.1=87.23+5.09=8.53-1.54=62.7-12.4=

8.68-6.61=49.23+5.17=1.78+0.7=20.7+4.28=

1.05-0.37=57.58+9.48=9.76+1.28=78+42.4=

9.14-2.61=90.54-7.36=5.25-0.46=80.15-9.17=

一、口算。

6.1-0.3=1.4+3.2=92.8-2=0.54+0.39=

2+0.5=6.2+0.2=9.3-4.2=0.98+0.15=

6.8+0.2=7.6+3=96.3-9=0.88+0.14=

5+0.1=7.8+0.6=7.2-2=0.85-0.16=

6.8+0.1=6.5+4.7=64.1-7=0.63-0.45=

二、笔算。

9.43+0.7=90.71+3.98=8.64+4.42=95.6+1.2=

9.47+5.95=11.06-4.45=3.34+0.32=26.55+7.06=

7+0.39=56.25-2.77=7.85-4.4=80.6-47.3=

7.45-1.15=59.21+3.69=8.75+0.25=25.45-7.35=

一、口算。

2.7-0.3=5.6+1.6=36.3-6=0.96-0.23=

7-0.6=5.5-2.1=9.1+1.5=0.87-0.21=

5-0.5=6.3+1.6=38.9+5=0.87+0.42=

1.4+0.1=8.2-0.3=8-5.1=0.69+0.14=

6.1+0.3=2+8.1=33.3+4=0.97-0.19=

二、笔算。

9.98+0.45=46.63-7.27=7.35-2.63=69.7-44=

7.78+4.02=36.47-1.18=9.87-0.15=62.48-6.59=

8.72-0.01=70.57+5.35=7.66+4.84=84.4-45.9=

7.29-2=50.15+1.26=8.62-0.75=90.91+7.07=

一、口算。

3.9-0.8=7+2.5=44.7+7=0.55+0.46=

7.9+0.9=7.8+1.6=9.2-1.2=0.59-0.26=

6.7+0.5=9.7+5.8=60.4+6=0.66+0.23=

4-0.1=5.8+3.6=6.8+5.2=0.89+0.39=

6.8-0.6=7.4+3.9=26.8+5=0.65-0.21=

二、笔算。

2.72-0.93=10.68-7.83=7.12-6.05=62.3+6.2=

9.36-1.47=34.89+4.21=9.37-0.14=64.81-2.13=

3.26-0.29=87.69-6.71=8.84-2.04=73.2-43.9=

9.07-6.1=49.55+3.53=6.13-0.41=46.94-4.27=

一、口算。

5.7-0.7=1.8+6.6=99.4-4=0.75-0.2=

2.5+0.4=9.6-0.2=6-4.7=0.69+0.41=

5+0.2=4.5+2.6=92.7-3=0.63-0.42=

1.6+0.4=8.9+2.7=6.4+2.3=0.61+0.04=

5.6+0.8=5.4+2.6=52.9+8=0.68-0.33=

二、笔算。

4.19+0.11=96.66-4.84=8.03+2.67=62-3.9=

7.72+3.83=85.66+4.69=1.3+0.56=29.09+1.7=

1.13+0.64=31.96+8.01=9.77+2.05=59.2+33.8=

7.53-5.32=30.3-6.28=8.4+0.03=80.28-2.22=

一、口算。

8.8+0.5=3.1+3.2=59.2-4=0.52+0.28=

2.1+0.8=7-3.3=6.5-1.1=0.61+0.07=

1.8-0.4=8.3+0.5=69.9-7=0.99+0.16=

3.1+0.7=9.7-1.8=9.5+0.2=0.74+0.42=

1.2-0.7=0.8+0.8=63.4+4=0.75-0.39=

二、笔算。

9.47+0.6=89.12-7.64=8.2-1.22=53.9+3.3=

8.71-3.28=15.23-3.88=6.78+0.47=44.98+9.54=

8.12-0.86=21.61+5.56=7.6-3.23=87.5-23.2=

7.8+3.28=91.72+5.19=9.6-0.33=94.94+5.99=

一、口算。

1+0.6=0.4+3.7=54.2+8=0.91-0.27=

4-0.3=7.4-4=6.1-5.1=0.97-0.32=

5.4-0.9=3.6+6.9=66.2+2=0.85+0.46=

7.7+0.4=6+4.2=9.6-4=0.91+0.46=

5.1-0.2=6.8+3.9=97.6-9=0.8+0.2=

二、笔算。

7.65-0.09=90.55+1=7.98-4.71=78.3-17.1=

7.63+5.16=49.39+5.61=9.79-0.95=66.24-1.73=

4.61+0.51=34.21+3.91=9.01-4.96=51.6-14.1=

9.31+6.76=78.33+4.59=2.72-0.71=19.62-6.86=

一、口算。

4.7-0.8=9+0.5=76.3-6=0.85-0.23=

1.4-0.3=7.6-3.8=7.8+3=0.78+0.29=

6.6-0.3=4+4.4=24.9-9=0.97+0.38=

3.4-0.4=7.5+1=9.6-1.9=0.58-0.41=

9-0.7=7.2+6=76.7-8=0.89-0.44=

二、笔算。

8.75+0.2=94.47+1.52=7.84+3=99.9-37.7=

9.47-3.51=38.32-1.26=9.53-0.33=99.92+7.71=

1.7+0.8=13.52-4.21=7.75-6.34=60.1+12.2=

8.57+5.12=97.34-8.7=6.57-0.62=68.92+9.62=

一、口算。

8.2+0.9=4.1+1.9=26.6+1=0.76-0.2=

8.3+0.1=9.7+2.5=8.8+5.1=0.52-0.47=

5.5-0.2=2+2.8=21.4+4=0.73-0.46=

8.1+0.9=7+0.2=9-3.2=0.85+0.46=

4-0.2=4.1+5.3=90.3-3=0.75+0.16=

二、笔算。

1.42-0.58=79.33+7.09=8.5+2.6=89.8+12.4=

7.36-4.85=90.73+7.84=2.14-0.93=69.1+3.87=

2.75+0.94=14.3-1.92=7.97-2.8=69.8+23.2=

7.16+2.75=49.12-9.32=8.85+0.36=74.24-3.42=

一、口算。

2.7+0.6=1.7+5.1=96.1+2=0.5-0.41=

3.5-0.6=9.4-1.8=9.5+1=0.81-0.17=

3.1+0.9=2+3.3=68.7+8=0.7-0.36=

8.1+0.5=8.8-0.2=9.2+2.5=0.83+0.29=

3.7-0.5=1+9.4=61.5+7=0.5+0.13=

二、笔算。

3.84+0.48=38.62+2.13=7.87-1.12=72.4-41.1=

9.63-4.93=40.48-2.27=7.8+0.7=31.99+3.99=

7.79+0.47=38.77-9.01=8.33+3.48=78.9+48.1=

8.03-5.15=11.81-3.87=7.46-0.42=70.54-9.66=

一、口算。

1.2-0.8=6+6.7=76.3+1=0.6+0.11=

6.1-0.3=8.8-2.4=6.8+4.3=0.6-0.06=

3.4-0.3=4+0.2=42.3+3=0.65-0.26=

5.8+0.9=6.2+4.9=8.3-2.5=0.92+0.19=

8.9-0.6=1.4+9.3=61.4-3=0.57-0.18=

二、笔算。

4.19+0.05=73.93-5.65=9.79-6.24=87.9-36.8=

8.81+4.55=86.27-2.14=1.91+0.11=59.1-1.87=

6.54+0.06=49.77+6.11=8.41-5.24=99.8-19.2=

9.8+4.71=20.56+1.66=5.4-0.79=83.57+1.35=

一、口算。

5.5+0.2=3.9+5.7=81.6+9=0.67+0.33=

5.7+0.8=6.9+2.6=7.4-4.5=0.85-0.35=

3.2+0.4=7.1+4.4=59.4+6=0.61+0.21=

6.6+0.7=9.4+2.7=8.8-4.6=0.97-0.25=

3.8-0.5=4.8+9.8=42.8+5=0.5-0.36=

二、笔算。

5.18+0.04=60.37-1.84=9.96+3.46=50.7-5.7=

7.31-1.08=80.68+1=6.3+0.27=24.9-2.75=

6.98+0.72=26.05-6.14=8.87+6.46=80.1+35=

7.97+4.29=73.77-3.85=2.38-0.67=66.21-5.31=

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