四年级数学下册小数加减法练习题精选12.docx

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四年级数学下册小数加减法练习题精选12.docx

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四年级数学下册小数加减法练习题精选12.docx

四年级数学下册小数加减法练习题精选12

一、口算。

7.4+0.7=9.9+8.2=42.8+5=0.87+0.15=

8.6+0.3=9.4-4.9=8.8-1.4=0.94+0.49=

1.3+0.1=0.8+8.4=62.9-3=0.82+0.46=

7.3+0.8=9.6+0.2=6.9+3.4=0.87-0.12=

4.6-0.1=4.6+9=64.4+1=0.65+0.44=

二、笔算。

2.3-0.96=58.93+7.16=7.24+1.6=86.2+35.3=

9.58-6.47=59.07-6.38=3.68-0.84=24.08-3.67=

1.23-0.28=81.72+9.39=9.89-2=77.7-16.2=

7.23-6.12=27.84+9.58=7.02-0.02=33.15+9.82=

一、口算。

7.8+0.7=5.2+8.3=66.2-9=0.59-0.35=

7.9-0.6=7.9-0.2=6.2-5.5=0.72+0.47=

6.9+0.4=2.8+8.4=66.5+2=0.97+0.46=

6.7+0.9=6.2-0.5=7.9-4.1=0.98-0.01=

6-0.8=8.3+6.9=79.1-3=0.68-0.09=

二、笔算。

3.88+0.24=59.13+3.12=7.79+1.88=69.6+42.4=

7.65+1.7=35.32+4.1=8.26-0.83=29.06-8.77=

1.29+0.77=27.62-4.86=8.17-2.68=92+27=

9.21-1.12=13.96-4.91=1.96-0.13=78.59+7.93=

一、口算。

8.9+0.4=8.5+7.9=49.1-2=0.95+0.27=

5.5-0.1=8.6+2.8=6.1+4.9=0.93-0.22=

6.5-0.6=0.5+0.1=82.3+6=0.85-0.46=

7.5-0.5=8.3+2.3=8.6-1.9=0.79-0.32=

6.9+0.3=3.3+1.8=56.9+4=0.73+0.48=

二、笔算。

6.58-0.3=58.14+9.86=9.46-3.44=59.6-24.5=

7.75-1.87=81.54-2.55=1.49-0.4=59.08-1.53=

2.42+0.98=47.94+8.3=8.91+4.28=89.4+24.7=

9.72-6.18=75.97-9.12=3.86+0.46=15.19-2.52=

一、口算。

4.4-0.4=1.8+3.6=15.6+4=0.93-0.46=

5.6-0.8=7.5-2.9=6.7-1.2=0.57-0.39=

5.5+0.2=3.9+9.9=35.4-1=0.98+0.05=

6.1-0.9=7.2-2.4=8.9-3.5=0.76+0.32=

1-0.2=2.3+8.5=30.3-1=0.69-0.36=

二、笔算。

2.96-0.61=21.72-9.71=8.22+4.69=93.1-14=

8.29+1.13=94.45+8.97=9.14-0.36=29.66+4.08=

7.3-0.55=39.59-1.01=9.32+4.1=85.6-33=

9.42+4.76=90.24+4.71=2.89+0.5=59.23+2.09=

一、口算。

4.3-0.1=5.9+3.6=41.5-1=0.9+0.4=

4.6-0.7=8.8-2.7=7.1+2.5=0.68+0.38=

5.7+0.2=1.5+7.7=27.1-9=0.8-0.33=

4.5-0.7=8.9+3.4=7.9+3=0.53-0.13=

8.9+0.1=3+5.4=52.8+7=0.95-0.27=

二、笔算。

8.08-0.77=86.76-1.75=7.93-2.97=62-43.1=

7.96-3.36=87.86+7.33=3.81+0.12=20.77-8.13=

1.14+0.21=17.38-7.24=8.66-3.45=88.3+30.3=

7.7-2.82=73.08+5.84=4.76+0.31=33.26+4.56=

一、口算。

8.8+0.6=7.2+6.6=25.5+5=0.98+0.25=

1+0.5=8.2+3.9=8.5+5.6=0.84-0.32=

1.4+0.6=0.4+3.7=42.7-1=0.72-0.3=

5.4+0.4=7.6+4.5=8+3.4=0.74+0.44=

5+0.9=8.3+1.5=84.7+1=0.67-0.46=

二、笔算。

9.75+0.87=95.64-2.25=9-4.17=72.2+18.7=

9.53+6.49=22.33-3.13=4.6+0.03=13.6-1.17=

1.93-0.1=50.83+9.31=9.45+3.4=57.1+33.5=

9.27+3.51=38.28+9.65=2.18-0.95=43.26-5.47=

一、口算。

7.1+0.2=4.4+7.6=25.8-3=0.93-0.07=

6.7+0.5=7.1-1.7=9.4-2.8=0.86+0.29=

7.3+0.1=0.4+8.6=68.7+5=0.95+0.19=

1.1-0.8=9.1+3.2=7.1+1.7=0.78-0.46=

5.7+0.4=9.2+3.4=87.4+1=0.94-0.1=

二、笔算。

2.48+0.96=25.73-4.71=7.65+4.78=58.5-22.4=

7.83+2.02=18.86-6.75=9.71+0.12=31.64-6.32=

5.64+0.17=47.61+9.68=8.23+4.76=72.9+1.3=

9.4-4.94=37.41-4.25=1.14+0.01=73.5-4.78=

一、口算。

1.4+0.3=9.1+1.9=55.4-1=0.53-0.45=

6.8+0.4=5.6+0.7=9.1+1=0.71-0.01=

5.4+0.3=2+3.6=76.2-9=0.8-0.25=

3-0.2=7.5+0.2=6-2.5=0.69+0.38=

3.9+0.1=4.4+5.5=91.9-5=0.72+0.31=

二、笔算。

7.21+0.56=81.68+3.26=8.41-2.62=79-30.4=

9.09-5.86=55.31+8.24=8.72+0.76=56.7-7.42=

7.93+0.01=18.24-1.05=7.93-4.86=98.6-14.8=

9.77+3.76=11.29-8.84=1.82-0.21=66.57-6.59=

一、口算。

4.3-0.3=4.7+0.9=38.2-6=0.66+0.25=

3.9-0.3=5.7-3.9=9.2-1=0.82+0.03=

7.7+0.5=9.6+2.4=85.7-6=0.87-0.15=

1.6+0.6=9.1-2.7=8.5-2.7=0.98+0.03=

5.4-0.6=4.1+9=75.2+1=0.6-0.46=

二、笔算。

8.76+0.41=94.36-7.56=8.11-6.19=55.7-45.1=

8.52+6.72=80.11-4.94=9.26+0.51=13.86-9.84=

1.84-0.25=23.95+9.23=8.5-4.78=97.2-4.1=

7.39-4.94=21.55+8.22=6.01+0.87=96.48-8.4=

一、口算。

3+0.1=3.9+7.1=40.8-4=0.72+0.34=

2.3-0.2=8.5+0.1=6.5-2.1=0.88+0.23=

8.6-0.9=1.2+5.2=39.2-9=0.51-0.01=

1.8-0.5=5-3.5=6.2+2=0.68+0.34=

7.5+0.3=3.4+2.6=48.2+8=0.57-0.46=

二、笔算。

9.01-0.42=70.55-6.92=9.87+3.85=92-14.8=

7.18+1.97=38.42+3.32=7.59-0.55=33.75-4.92=

2.4+0.25=73.03+3.29=9.55-4.65=70.3-11.6=

9.98-4.48=24.11+6.36=4.8+0.16=53.02-4.04=

一、口算。

2.5-0.8=1.3+0.4=81.1-7=0.56-0.26=

1.7-0.6=7.4+1.2=8.7+5.9=0.77+0.36=

4.6+0.4=6.1+7.8=46.1-2=0.76+0.41=

2.5-0.5=9.5+1.2=6-3.6=0.58-0.23=

4.2+0.6=5.3+6.5=77.1+5=0.56+0.25=

二、笔算。

7.39-0.67=46.39+5.6=8.67+2.76=88.5-47.5=

8.14-2.77=33.39-3.88=2.02-0.85=11.38-9.53=

4.19-0.33=74.69+1.43=9.35+6.33=82.4-38.1=

8.91-1.24=86.07-7.68=7.26+0.19=59.78+8.7=

一、口算。

7.8-0.4=0.8+4.9=81.7+1=0.9+0.02=

4.1-0.7=8.4+4.7=6.6+4=0.95-0.45=

3.4+0.5=5.3+4.7=64.7+9=0.59-0.45=

5.1+0.7=5.5-4.5=7.6-3.7=0.92+0.39=

7.6+0.5=2.6+9.9=28.6+7=0.6+0.35=

二、笔算。

7.64+0.36=63.64-5.96=9.22+5.63=61.9+42.1=

9.89+3.72=36.05-3.12=3.29+0.44=56.65-7.46=

2.42-0.08=43.69+8.89=8.06-2.48=69.7-13.8=

8.92-4.75=35.26+1.11=8.19+0.06=10.42-3.35=

一、口算。

3.5+0.5=1.3+7.6=21.4+6=0.94-0.14=

5.1+0.1=8.9+4.4=7.9+3.5=0.66-0.01=

5.8-0.9=7.3+9.3=37.2+7=0.73-0.47=

4.7-0.8=6.9+3.3=8.8+2.6=0.94-0.27=

2.6+0.5=1.7+8.7=13.8+2=0.69-0.08=

二、笔算。

8.94-0.63=99.73+6.36=9+6.51=56.8-33=

7.14+6.12=29.55+1.82=5.58+0.67=97.8-3.92=

2.82-0.81=97.06-1.32=8.17+5.46=58.7-7.7=

8.93+6.01=18.81+6.4=4.69-0.53=47.84+6.46=

一、口算。

8.4-0.7=8.8+9.5=61.2-8=0.64-0.28=

3.7-0.5=8.4+3=7.9+2.9=0.99-0.05=

2.5-0.2=7.7+2.1=12.3-9=0.79+0.47=

7.6+0.1=9.7-0.9=7.6-0.3=0.91-0.18=

5.2-0.5=3.5+9.8=66.3+4=0.96-0.19=

二、笔算。

6.58-0.05=37.96+9.6=7.34+4.14=83+42.7=

7.82+6.35=99.07+4.74=6.11+0.5=52.34-3.24=

5.67+0.18=24.79-2.83=9.58+6.16=72.4-13=

9.89+3.43=46.73-8.97=4.62-0.13=35.56+5.83=

一、口算。

7.6+0.8=0.1+8.7=42.2-9=0.55+0.16=

6.7-0.2=5.7+2.4=6.1+3.9=0.66+0.4=

3.5-0.9=9.3+6=60.5+2=0.54-0.36=

1.6-0.6=9.3-3.8=6.5-1.8=0.5+0.01=

5.6-0.3=6.7+0.9=69.1+2=0.88+0.34=

二、笔算。

4.18-0.84=87.05+6.62=7.58-1.69=51-26=

7.32+5.16=65.67+5.19=8.02-0.59=96.74+3.84=

3.24-0.76=91.75+5.87=8.5-5.64=50.3-19.3=

7.31+4.32=48.04+2.45=1.59-0.39=30.63+1.18=

一、口算。

7.3+0.5=4+0.2=30.9-1=0.92+0.01=

5.3+0.2=5.2-1.5=6.7-0.8=0.69+0.34=

8.7-0.9=3.6+1.8=23.6-3=0.99+0.3=

5.8+0.5=6.2+1.8=7.3-3.3=0.84-0.25=

5.8+0.8=4.4+1=84.4+9=0.69+0.03=

二、笔算。

8.51+0.92=55.55-9.64=7.82+1.64=89+48.6=

9.82+4.85=13.62+2.7=4.73+0.73=53.84-6.39=

8.87+0.09=38.15+5.31=9.08-2.21=64.2-32.8=

7.82-3.33=44.67+1.53=6.93+0.85=71.88-3.54=

一、口算。

1.9+0.2=1.2+6.2=91.3+8=0.74+0.11=

9+0.2=6.6+4.2=7.5+1.1=0.56-0.18=

4.4-0.2=8.4+9.9=47.3-7=0.55+0.06=

5.9-0.6=6.9-0.5=8-5=0.92+0.29=

8.6-0.7=8.4+0.8=26.4-9=0.52-0.17=

二、笔算。

4.63+0.33=46.39+1.51=8.92-4.81=87.3+42.5=

8.46-3.19=15.19-3.32=7.86+0.51=39.07+4.62=

8.87+0.32=83.92-6.52=7.07+6.99=59.3+8.3=

8.2-2.14=11.87+1.96=9.51-0.7=55.32+2.22=

一、口算。

3-0.6=3.6+0.1=30.5+5=0.68+0.22=

1+0.9=8.4-3.3=6.5+2.1=0.78+0.36=

1.2-0.4=0.7+6.2=99.8-3=0.65-0.16=

3.5-0.9=6.3+0.6=8.5-3.9=0.76+0.38=

1.9-0.4=3.7+1.5=94.1+8=0.7-0.17=

二、笔算。

5.97-0.77=43.22-8.07=9.64+3.52=67.7-29.7=

9.49-3.99=80.6-6.16=9.58+0.16=94.96+4.94=

8.01-0.75=51.27-8.02=9.46+3.49=81.7+39.9=

7.24+5.87=41.96-2.61=8.85+0.9=44.29+2.46=

一、口算。

5.3-0.7=1.6+2.5=32.5-3=0.76-0.42=

7.4+0.5=7.1+0.6=8.6-0.5=0.81-0.13=

3.9-0.6=7.1+7.4=40.8-9=0.99+0.06=

5.5-0.2=9.8+1.6=9.4-0.8=0.9-0.12=

2.4+0.6=7.7+4.7=23.5-5=0.81+0.05=

二、笔算。

2.01-0.01=37.28-2.26=7.48-5.72=96+10.8=

9.55+4.47=49.4+9.78=9.07+0.05=26.26+1.85=

6.47+0.83=98.87-1.47=7.29-3.64=80.4+2.3=

9.45+6.3=61.52-6.62=7.68-0.42=82.16-3.14=

一、口算。

2.7+0.9=8.4+9=55.1-7=0.6-0.44=

8.8-0.2=6-1.9=8.4-4.5=0.62+0.06=

5.3-0.2=2.4+3.9=54.1+1=0.98+0.08=

1.9+0.4=5.5+2.9=8.9+3.7=0.58+0.25=

4.6+0.6=0.8+2.6=47.9-9=0.98-0.35=

二、笔算。

9.13+0.63=82.28-6.89=7.4-5.21=72.4+2=

8.66+2.12=93.57+2.85=4.16+0.14=40.2+1.89=

9.27+0.31=14.43-4.87=8.82-5.1=96.5-12.8=

9.11-5.5=24.69-4.17=2.29+0.02=64.

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