四年级数学下册小数加减法练习题精选149.docx

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四年级数学下册小数加减法练习题精选149.docx

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四年级数学下册小数加减法练习题精选149.docx

四年级数学下册小数加减法练习题精选149

一、口算。

8.6+0.1=1+5.4=17.6-7=0.78+0.18=

6.8-0.9=5+0.1=9.1+5=0.9-0.35=

4.7-0.7=3.8+4.4=99.1+4=0.87-0.28=

1.9+0.7=6.2+1.5=6.1-2.8=0.72-0.09=

7.4+0.2=5.9+7.6=88.8-5=0.94+0.01=

二、笔算。

1.4+0.84=60.57+2.73=7.57+2.41=71.5+11.4=

9.13-1.32=59.87-4.42=3.66+0.52=28.41-3.6=

6.79-0.11=24.76-7.47=8.39-5.86=56+24.3=

7.09-1.61=53.89+8.85=1.34-0.46=35.62+8.47=

一、口算。

6.5-0.2=6.4+5.6=30.6+3=0.81-0.44=

8+0.1=9.6-0.6=9.9+1.8=0.85+0.06=

3.2-0.7=5.9+8.7=24.1+7=0.91+0.07=

2.8-0.4=7.5+0.5=8.2-2.7=0.76-0.35=

2.5+0.4=4+5.3=78.4-3=0.6-0.27=

二、笔算。

4.43-0.54=92.41+2.59=8.13+3.95=61.2+11.5=

9.31+4.14=42.69+1.78=1.38-0.31=19.72+6.98=

3.28+0.5=72.68+6.62=9.82+5.96=63.1+21.1=

9.95-6.6=16.14-2.1=2.36+0.27=85.54+1.2=

一、口算。

4.9-0.5=1.3+6=32.5-5=0.93+0.47=

8.1+0.7=5+1=6.3+1.1=0.98+0.35=

3.8-0.8=4+1.8=72.1+2=0.81-0.33=

3+0.2=8.4+4.6=8.1-0.3=0.9+0.25=

2.5+0.9=1.1+8.3=46.2+2=0.64+0.39=

二、笔算。

3.45-0.22=21.76-9.74=8.85+3.34=88.7-19.4=

8.72-5.98=19.89-3.99=6.89+0.9=37.35-8.42=

2.31-0.95=35.52+9.4=7.24-5.61=96.2-29.2=

8.93-3.18=97.45+1.54=1.47+0.63=57.58+6.59=

一、口算。

8.4+0.5=4.8+4.1=38.2-9=0.89-0.14=

2+0.7=6.6-0.1=9.6+2=0.7+0.07=

2.4+0.8=0.2+2.2=62.2+3=0.9+0.11=

1.1-0.9=8.1+3=6.7-1.9=0.83+0.43=

8.8+0.5=8.4+5.6=95.4-4=0.78-0.33=

二、笔算。

4.51+0.35=70.26+9.36=8.45+3.66=72.7+26=

9.36-6.42=99.12-4.61=2.07-0.82=21.14+9.17=

1.45+0.15=74.45-7.1=8.14+3.62=80.2+12.8=

9.53-5.03=72.73-7.46=8.35-0.59=30.44+3.55=

一、口算。

5.1-0.8=3.5+9.6=94.1-1=0.62+0.42=

7.7+0.7=6.7-2.2=9.4-2.8=0.53-0.17=

4.4-0.6=1.2+9.6=24.8+8=0.62-0.45=

1-0.6=8.7+3.2=6.2+5.6=0.79-0.2=

8.8-0.7=7.3+9=19.4-2=0.8-0.48=

二、笔算。

5.9-0.99=11.29+4.41=7.43+3.99=82.4+42.2=

9.57-2.77=66.28-7.76=4.04-0.09=62.24-9.84=

7.11+0.22=53.62-5.13=9.36-4.54=94.8+45.3=

7.19+1.46=83.05+3.62=7.78-0.17=75.97+6.72=

一、口算。

5.9+0.6=8.9+6.1=26.3+3=0.57+0.42=

5.5+0.3=6.8+0.2=6.1-5.9=0.58+0.46=

8.5+0.7=1.8+7.9=80.9-1=0.96-0.2=

8+0.5=8.1-1.3=8.9-2.3=0.99-0.41=

5.9-0.1=9.1+8.9=32.9-1=0.93-0.06=

二、笔算。

8.43+0.71=53.72+9.75=7.61-3.55=52.2+36.6=

8.12-6.71=84.14+5.53=5.63+0.47=37.7-9.68=

7.92+0.68=69.43+6.46=9.37+2.66=64.6-38.6=

9.64+3=49.34+8.23=9.99-0.7=75.74+6.29=

一、口算。

2.9-0.5=0.5+3.1=44.7-8=0.56-0.16=

5.7+0.9=9.9+3=8.7-1.3=0.97-0.37=

6.4+0.4=5.3+1.9=38.9+3=0.69-0.44=

7.8-0.6=6.6+1.5=9+1.8=0.81-0.03=

5.1+0.6=2.7+3.3=29.2-7=0.71+0.49=

二、笔算。

6.45-0.55=22.48-5.66=8.29+3.85=94.2+25.2=

8.93+6.32=27.04-1.24=9.03+0.07=43.01+1.34=

8.88+0.98=63.96+3.94=9.58+5.06=98.2-45.3=

9.18+3.38=18.28-9.52=1.04+0.74=24.99+3.21=

一、口算。

2.2+0.1=6.4+4.1=52.3-9=0.86-0.11=

2.4-0.4=5.7+1.9=9.6+4=0.58+0.39=

8.8-0.3=0.6+7.5=71.7+5=0.94+0.38=

6.2+0.4=5.4+4=8.7+4.4=0.64-0.03=

3.7-0.4=6.5+1=68.3+6=0.56-0.12=

二、笔算。

2.95+0.73=31.62+4.52=9.36+3.11=53.5-10.1=

9.52+3.92=73.84-3.75=4.37+0.9=78.9-8.1=

3.87-0.6=59.57-1.62=7.5-5.65=94.8+38.8=

8.33+1.85=97.2-5.19=5.45+0.62=97.96+1.21=

一、口算。

7.9-0.8=5.9+6.6=70.7+2=0.66-0.39=

8.4+0.5=5.1-2.9=6.9+3.6=0.82+0.01=

7.9-0.4=8.9+8.7=24.2-4=0.59+0.21=

1.1+0.8=8.6-4.3=9.5+3.5=0.99+0.21=

3-0.7=6+4.6=60.9-1=0.67+0.2=

二、笔算。

7.07-0.57=66.59-4.56=7.42-3.06=57.1+34.4=

9.57-4.34=38.33+8.55=4.54-0.64=26.23-6.08=

4.66+0.44=86.52-5.94=7.96+5.19=54.2-17.7=

7.18+2.27=77.34+7.91=9.13+0.29=95.5-6.62=

一、口算。

5-0.1=0.1+9.8=65.6-6=0.82+0.31=

7.6-0.4=9.7+1.2=9.8-1.5=0.94+0.11=

1+0.9=9.6+5.4=79.8+2=0.59+0.17=

6.7+0.5=6.6-1.9=9.5-3.8=0.85+0.48=

2.6+0.2=9.4+4.6=78.3+9=0.71-0.33=

二、笔算。

5.92+0.4=46.83+7.86=7.93+2.64=57.5+43.4=

8.2+5.18=16.2-8.98=4.08-0.05=84.02+5.94=

3.42-0.07=59.17+6.73=8.55+6.24=91.3+4.4=

9.84-2.06=51.56+3.92=6.22+0.56=93.24-1.93=

一、口算。

5.5-0.2=1.4+0.6=26.3-2=0.63+0.22=

6.6+0.5=6.9-4.7=6.7+4.5=0.59+0.09=

7.6+0.4=6.7+4.7=20.5-7=0.71-0.4=

8-0.5=6.5-3.6=7.4+3.4=0.86+0.24=

3.2-0.5=0.6+4.2=84.9+2=0.53-0.43=

二、笔算。

8.9-0.34=13.92-6.3=8.08+3.59=67.3+8.5=

9.08-5.73=54.07+2.08=4.41+0.1=81.94+8.39=

7.3-0.1=40.44-5.82=8.19-3.3=65.1-46.6=

8.59-4.95=17.45+7.29=6.98+0.7=44.59-7.16=

一、口算。

3.9+0.5=7.8+4.5=33.1+3=0.77-0.46=

2.5+0.6=5+1.3=8.9+3.9=0.76-0.41=

6.4+0.8=9+6.8=46.2-1=0.67-0.15=

1.6-0.4=7.9-4.5=8.7+0.5=0.59+0.04=

8.6-0.3=6.9+4.1=30.7-2=0.64+0.42=

二、笔算。

5.6+0.96=71.69-9.38=7.76-6.69=75.7-1=

8.42+6.81=95.46-3.36=6.9-0.59=14.67+2.19=

4.49-0.99=60.6-2.95=9.88-5.97=92.1-3.8=

7.38+6.06=52.29-4.57=7.49+0.66=46.42+1.04=

一、口算。

2.9+0.1=9.8+9.7=54.7-2=0.65-0.32=

6.4-0.7=9.7+0.6=9.5+1.4=0.84+0.49=

6+0.5=1.7+3.3=81.7+1=0.64-0.4=

2.6-0.8=6.9+2=8.2-2.4=0.54-0.43=

3.8-0.7=4+0.1=67.8+6=0.89+0.47=

二、笔算。

5.54+0.73=19.14-2.92=9.54-2.82=69.3-13.1=

9.23-4.11=41.75+8.32=7.14-0.51=91.15-2.5=

1.59-0.99=68.45-9.33=9.52-6.47=91.9+17.8=

7.93+6.68=34.38+1.49=7.86+0.83=17.45-8.11=

一、口算。

5.8-0.3=0.6+8.1=38.3-4=0.66+0.34=

5.4-0.4=6.1-3.9=7-5.2=0.73-0.22=

5.2+0.3=2.6+4.4=14.2+2=0.84+0.12=

2.3-0.8=8.6+1.5=7.1-2.6=0.7+0.34=

7-0.5=2.1+4.8=10.7+6=0.66+0.2=

二、笔算。

4.91+0.51=28.27+4.86=8.42-2.56=64.4+38.8=

9.6+6.57=90.53-9.52=5.12-0.11=42.92-1.33=

7.67-0.28=41.42-4.63=9.18-4.88=86-36.7=

7.35-4.28=35.69-1.7=6+0.24=47.37+6.37=

一、口算。

6.1-0.5=0.5+3.6=61.9-3=0.52-0.26=

6.2+0.8=5.9+1.2=7+2.5=0.68+0.47=

6.1-0.8=9.3+4.7=10.8+4=0.87+0.35=

1.1+0.8=7.8-4.3=8.9+5.7=0.64+0.11=

4.3+0.9=9.9+6.2=60.9+4=0.87+0.08=

二、笔算。

3.82+0.86=87.54-7.66=9.63+6.83=72.7-30=

9.97-4.47=30.81+5.98=7.38-0.17=25.34-1.63=

5.42+0.3=66-8.69=9.17-5.74=65.6-49.8=

7.79-1.08=49.84+1.5=6.37-0.88=58.23-7.45=

一、口算。

6.8-0.9=1+8.2=35.1+8=0.95+0.22=

9+0.7=8.2-2.3=7.5+2.9=0.71-0.04=

1.1-0.1=8+2.9=83.5-1=0.75+0.2=

8+0.7=7.4-4.2=8.2-0.9=0.74+0.34=

3.6-0.9=9.2+9.6=80.7-6=0.77+0.46=

二、笔算。

1.22+0.46=40.46-1.77=9.25+2.35=51.6-34.7=

9.03+4.97=60.93+7.73=5.33+0.58=26.95-7.52=

9.39+0.33=74.19+8.64=7.49+2.18=99+26.2=

9.72+6.75=44.69-4.74=2.34+0.12=42.05-7.93=

一、口算。

8.7-0.4=9.1+8.7=21.1-4=0.98+0.11=

1.7-0.3=5.3-1.7=8.2+1.3=0.95-0.01=

1.6+0.1=3.7+3.8=60.3+7=0.88+0.12=

1.6-0.5=8.5+0.4=8.2+1.8=0.87+0.16=

1-0.8=4.4+6.9=82.4+7=0.89-0.37=

二、笔算。

2.88+0.65=70.37+4.29=7.17+2.71=75.8-23.3=

9.31+2.79=59.59-9.75=5.97+0.56=44.91-7.08=

8.1+0.21=61.91+2.85=8.56+4.85=87.3-48.6=

8.63+2.28=64.6-7.02=6.92+0.39=96.41-6.87=

一、口算。

3.6-0.1=0.8+2.8=42.4-7=0.81+0.18=

4.2+0.1=9.3+1.8=9.2+3.5=0.93-0.1=

1.6-0.6=6.5+5.4=94.8+4=0.55-0.14=

7.2-0.1=9.1-2.6=8.3+2.9=0.79-0.17=

6.4-0.6=5.4+5.4=80.7-4=0.95-0.02=

二、笔算。

5.96-0.71=27.08-1.48=8.24+2.23=75.9-49.2=

7.32+6.72=36.63+5.2=2.64-0.59=64.51-2.13=

7.25+0.34=38.6-1.82=7.36-1.24=53.2-11.7=

8.42-3.92=27.4-4.4=1.52-0.94=42.82-5.01=

一、口算。

7.9+0.1=7.6+1.2=73.9+4=0.8-0.16=

1.7-0.3=6+3.3=9.8+4.4=0.52+0.11=

3.4-0.3=9.5+5.7=81.2+2=0.78+0.24=

2.3-0.7=7.5-3.7=8.6-2.5=0.66+0.15=

3.3+0.7=4.1+0.7=21.7+2=0.72+0.24=

二、笔算。

2.5-0.55=74.73-5.27=7.55-2.31=98.3+2.9=

9.36+6=90.47-2.63=4.23-0.53=37.27-5.73=

4.32-0.64=86.85-7.01=8.92+1.58=55.2-1.8=

8.75-4.55=43.48-3.53=1.11+0.56=45.33+2.37=

一、口算。

3.9-0.5=5.5+0.8=56.1-3=0.91+0.01=

6.3+0.2=7.7+2.5=7.9+4.8=0.85+0.48=

5.6+0.7=9.3+4.4=45.3+8=0.76+0.26=

3.3-0.6=9.8+1.5=8.6+4.5=0.59-0.42=

1.9+0.2=2+8.7=41.9-3=0.77+0.12=

二、笔算。

9.74-0.74=68.98-9.07=9.47-1.03=67.6+11.9=

7.55-1.54=29.89-7.3=4.81+0.02=44.12+9.5=

1.59-0.7=10.22+8.22=8.48+2=63.3+4.1=

8.03+3.43=87.7+8=4.84-0.19=15.84-7.61=

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