人教版四年级数学下册小数加减法综合练习题25.docx

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人教版四年级数学下册小数加减法综合练习题25.docx

人教版四年级数学下册小数加减法综合练习题25

一、口算。

3.9-0.9=8.6+2.6=52.7+6=0.53-0.42=

8.9-0.9=7+4.8=9.8-5.7=0.52+0.05=

4.2+0.8=4.9+2.8=75.2+4=0.77-0.49=

2.5-0.3=9.8+2.3=8.6-1.8=0.62-0.45=

1.6-0.1=1.2+9.9=14.8-4=0.96+0.44=

二、笔算。

4.47+0.12=97.72+2.03=8.9+2.81=97.6+10.7=

8.6-1.77=65.58-8.37=8.62-0.31=14.3+2.73=

5.81-0.52=69.75-7.05=7.17+5.83=80.8-43.6=

8.88+2.78=42.9+4.79=5.22-0.37=72.95-4.42=

一、口算。

3.9+0.2=6.3+0.4=44.9-9=0.65+0.07=

3.3-0.4=8.7+4.8=9.4-3.9=0.78+0.22=

8.8+0.2=4.4+2.9=52.3+8=0.81-0.07=

8.4+0.8=7.1+1.1=8.2+2.1=0.59-0.06=

5.3-0.8=9.7+6.5=22.1-4=0.64-0.1=

二、笔算。

5.9+0.66=11.45-7.59=8.78+6.76=91.6+32.8=

7.16-5.08=49.82-6.82=4.64-0.78=12.98+3.51=

3.85+0.82=94.56-5.48=9.74-6.04=95.8-29.1=

7.33-1.61=95.39-6.77=8.12+0.63=90.1-2.9=

一、口算。

4.8-0.9=2.1+4.2=39.6-7=0.61+0.3=

4.9+0.9=8+4.7=7.5-2.4=0.93+0.02=

1.6-0.4=1.3+7.3=26.2-4=0.86-0.11=

4.4+0.6=7.2+3.5=6.9+1.2=0.74+0.35=

6.9-0.6=0.9+7=69.4-7=0.73-0.44=

二、笔算。

4.29-0.74=90.8-9.69=8.68+2.43=57.7+34.1=

7.73+2.31=97.65+4.14=9.17+0.17=20+8.45=

1.55-0.47=31.16-6.32=9.68-5.08=97.4-4.6=

7.49+3.01=29.22+4.41=8.54-0.92=11.02+8.33=

一、口算。

5.5+0.2=9.6+0.8=67.8-2=0.86-0.14=

8.4-0.8=6.4-1.4=8.4+2.4=0.81-0.49=

1.2+0.2=8.1+0.3=76.8+1=0.52+0.14=

2.2-0.6=7.5-4.1=8.2-2.4=0.94-0.41=

5.8-0.9=0.8+6.1=40.2+2=0.99-0.45=

二、笔算。

3.6-0.68=29.5-3.2=7.59-6.74=63.1-14.1=

7.95-2=62.67+9.81=7.89+0.25=16.11+2.64=

7.8+0.13=31.36-5.33=7.15+4.24=77.7-44.7=

9.6+1.44=60.46+9.1=2.4-0.51=60.16-9.38=

一、口算。

1.7-0.6=9.8+6.2=74.4-1=0.55-0.19=

2.6+0.7=8.8-0.8=7.3+1.6=0.74+0.14=

3.7-0.5=8.8+2.7=65.5-1=0.98+0.15=

7-0.5=6.5-2.4=7-4=0.82-0.18=

1.2-0.7=2.1+0.6=44.2+2=0.58-0.24=

二、笔算。

9.54-0.69=54.68+6.8=9.25+5.04=95.4-9.4=

9.25+6.9=79.5+1.98=2.68-0.35=25.41-1.32=

9.74-0.83=67.23+6.06=8.78+4.96=54.3-14.5=

7.89+2.25=47.6+9.45=2.3-0.73=20.89+6.29=

一、口算。

3.7+0.6=5.8+1.4=13.5+7=0.87+0.33=

6.5+0.5=7+2.8=8.5-4=0.55-0.06=

2.3-0.8=4+6.8=54.7-7=0.93-0.46=

5-0.8=6.1+2.7=6.4-1.7=0.56+0.3=

7+0.4=0.8+8.1=10.5-5=0.86+0.38=

二、笔算。

5.09+0.36=93.93-7.8=9.6+5.4=72.4+41.1=

8.44+2.33=47.32+7.81=9.15+0.16=81.81+4.06=

1.38-0.3=64.69+5.7=8.02+3.99=52.3+22.7=

9.99+5.17=43.67-6.65=6.9-0.18=77.89+3.27=

一、口算。

5.5+0.6=5.2+1=37.6-1=0.6+0.49=

3.7+0.6=8.2+3.3=8.2+5.4=0.85+0.06=

7.4-0.8=7.3+2=25.4+9=0.94-0.23=

7.8-0.1=5.3-2.2=6.5+3.6=0.84-0.2=

2.5+0.3=6.6+6.1=33.4-5=0.89-0.37=

二、笔算。

5.62+0.32=90.05+7.58=9.79-5.03=97.5-29.3=

8.1+3.69=85.91-2.01=1.44-0.88=46.35-8.26=

3.42-0.94=65.3+5.46=7.99+3.11=77.9+36.9=

7.93+3.29=14.99+2.1=6.13-0.27=36.72+7.68=

一、口算。

4.8-0.8=4+1.6=29.1+8=0.76-0.28=

1.4-0.8=5.6-4.6=7.1-5.6=0.52+0.45=

5.1+0.8=2.6+2=31.2+2=0.7+0.05=

6.8-0.7=6.2-3.8=6.6+1.9=0.91-0.2=

8.6+0.5=0.5+5.3=40.3+7=0.97-0.19=

二、笔算。

2.69-0.85=58.74+7.41=9.15-4.63=50+3.4=

7.95+1.81=97.9+1.55=2.12+0.64=45.52+4.4=

2.05-0.63=22.52+4.28=9.2+6.03=91.9-36=

8.85+1.2=45.74-5.63=7.8+0.45=25.51-4.39=

一、口算。

2.8+0.4=7.4+6.4=90.9+8=0.92+0.3=

7.2+0.3=6.5-1.9=9.2-0.8=0.59+0.33=

8.2+0.5=3.2+9.2=55.1+6=0.64+0.35=

8.4-0.6=5.3-2.4=9.1+5.2=0.52+0.23=

8.8+0.6=6.2+9.9=80.1+5=0.67+0.37=

二、笔算。

6.34+0.4=15+6.95=9.6+6.73=84.9+37.3=

9.65-4.8=75.49+6.73=1.22-0.12=41.91+9.03=

2.98-0.47=94.23-3.19=7.94-4.13=76.4-29.2=

8.04-2.44=54.45-7.47=1.2-0.2=14.9+7.22=

一、口算。

7.1+0.6=2.3+1.4=27.1-9=0.96+0.16=

2.5+0.4=8.5+4.2=8.2+1.9=0.74+0.22=

3.2-0.2=8.3+3.4=29.1+8=0.71-0.16=

3.2+0.5=5.6-3.2=9.7+3.4=0.76-0.45=

5.7+0.1=4.4+9.7=60.9+8=0.59-0.24=

二、笔算。

4.06-0.9=21.31+3.29=7.16+5.21=96.3+20.8=

9.51-6.65=50.35-8.08=5.44-0.02=31.6+2.92=

6.01+0.09=46.94-1.81=7.02+2.25=58.7-9.9=

9.85+6.73=72.58-2.32=7.32-0.32=25.27+8.9=

一、口算。

5.3-0.3=9.4+1.1=20.8+2=0.97-0.29=

7.2+0.9=7.3+3.3=8.4-0.2=0.6-0.17=

4.6-0.7=5.9+7.1=53.1-7=0.58-0.44=

7-0.8=7.1-0.7=7.9-0.6=0.57-0.09=

3.4+0.5=2.8+9.7=55.5-6=0.65-0.05=

二、笔算。

2.77+0.25=87.81-2.36=7.83-6.05=92.8-10.4=

9.42-6.58=20.37-6.51=4.78-0.74=37.62+6.52=

6.02+0.1=75.17+2.4=7.33-1.09=95.9+43.6=

8.45-2.7=59.88-9.39=1.84-0.37=26.55-5.48=

一、口算。

1.2-0.4=3.1+3.4=49.1+1=0.87-0.2=

3.7+0.9=7.8-0.8=6.5+0.7=0.51-0.05=

1.1+0.1=8.4+9.2=92.5+5=0.86+0.14=

3+0.8=7.2+1.9=6.5+5.3=0.54+0.2=

1.8+0.4=9.7+1.1=16.5-5=0.6+0.38=

二、笔算。

9.27-0.63=60.11+3.33=7.17-6.88=50.1-10.6=

8.94+3.97=38.16-7.23=2.44-0.51=70.43-9.57=

5.46+0.71=19.21+9.14=8.77-3.92=51.2-35.3=

9.96+2.06=83.48+3.93=5.29+0.9=85.5+6.76=

一、口算。

4.4-0.4=0.3+7=90.7+8=0.77-0.33=

6.6+0.6=6-1.7=6.8-5.3=0.74-0.32=

4.7-0.2=3.9+3.7=72.4-5=0.67-0.49=

2.7-0.8=9+3=7.7+2.2=0.98+0.32=

7.9-0.1=9.4+3.8=45.6+7=0.93-0.24=

二、笔算。

2.39-0.18=27.01-2.61=8.03-5.24=97.5+34=

9.95-3.79=91.4+3.61=1.04-0.77=93.15-7.16=

1.93-0.65=73.73+8.13=7.13+6.96=60.4+35.4=

8.22+3.98=94.72-3.33=4.42-0.71=26.11+4.41=

一、口算。

2+0.9=8.8+9.3=12.7+8=0.72-0.03=

6.8-0.3=8.1+0.2=6.3+4.7=0.74+0.22=

4.3+0.3=3.8+9.3=59.3+1=0.6-0.17=

5.6-0.3=8.3+0.4=7.9-2.4=0.99+0.17=

1.3+0.7=8+1=94.3+2=0.54+0.13=

二、笔算。

6.28-0.26=12.51-5.62=8.25-1.84=57.4+42.7=

7.7+1.86=10.93-8.69=3.68+0.02=26.7-5.29=

8.26-0.21=37.69-3.07=7.94+5.06=69-30.6=

9.37-1.64=33.13+5.34=3.18-0.82=94.83+2.48=

一、口算。

1.2+0.1=8.6+1.5=72.6+9=0.93-0.35=

3.4-0.4=5.4+1.4=7.8-4.5=0.57+0.48=

7.4+0.5=8.7+7.2=52.5-9=0.53+0.46=

8.2-0.7=6.8-3.9=8.2+1=0.95-0.23=

6.3-0.3=7.3+8.9=20.3-2=0.77+0.08=

二、笔算。

4.37+0.58=63.69+7.37=8.25-5.34=64.3-5.3=

9+2.56=67.68-3.44=6.87-0.18=45.57+2.87=

1.64+0.93=75.02-8.09=9.72-5.78=68.9-20.5=

8.77-3.25=51-4.28=1.3+0.73=12.59+9.68=

一、口算。

4.8+0.7=3.9+8.1=33.9-2=0.84+0.06=

4.6+0.2=5.1-4.2=8.1-4.5=0.94-0.14=

2.8+0.3=0.9+7.2=80.2+5=0.73-0.37=

4.8-0.2=8.1-1.8=8.8+5.9=0.89-0.39=

6.2+0.2=4+4.1=38.9+4=0.94+0.18=

二、笔算。

8.53+0.73=98.59-4.38=7.52+6.48=86.1+31.9=

8.67-2.23=75.66+6.07=8.99+0.5=30.13+8.66=

9.49-0.35=71.64-9.03=8.88+1.56=78.5+15.7=

7.13+2.38=22.6-9.61=9.17-0.36=86.06-2.68=

一、口算。

5.7-0.7=0.5+8=83.9-4=0.62+0.2=

7.7-0.9=9.4-1.4=8.4+1.5=0.96-0.47=

3.3+0.6=6.7+3.2=29.7-1=0.98+0.33=

3.4-0.4=8+0.5=8.5-5.1=0.81+0.45=

7.4-0.7=2.5+3.8=12.3+2=0.77+0.27=

二、笔算。

5.39+0.4=27.79-2.69=9.3+6.25=57.4-32.7=

8.06-4.09=79.02+7.49=9.02+0.52=63.9+4.35=

7.96-0.86=29.17+6.68=8.29+2.61=57.7+36.5=

7.26-5.92=63.37-9.56=2.31-0.99=68.52+6.92=

一、口算。

9+0.2=6.1+2.6=45.8+7=0.6-0.19=

3.5-0.4=7+4.2=8.2+3=0.52-0.34=

4+0.9=3.8+3=70.6+4=0.54+0.17=

5.2-0.8=7.7-3.7=6.8-1.4=0.57-0.1=

8.9+0.5=1+9.6=74.1+6=0.78-0.11=

二、笔算。

7.88-0.76=84.92+5.71=7.79+4.56=78.9+42.1=

9.16-1.32=17.51-2.74=8.55-0.5=52.2-4.83=

1.85-0.18=66.27+5.64=8.22+3.61=59.5-21.9=

8.61-1.77=99.7+4.62=6.67-0.53=41.98-4.62=

一、口算。

3.3+0.6=3.2+3.1=27.3-8=0.79-0.07=

8.5+0.7=8.9-2.8=7.8-0.1=0.57+0.38=

5.6+0.7=5+6.1=20.4+9=0.8+0.22=

6.6+0.2=7.3-2.9=8.5+4.1=0.82+0.26=

8.7+0.7=0.5+2.1=65.9-8=0.81-0.11=

二、笔算。

2.9-0.98=61.68-4.21=9.89+1.08=50.7+37.4=

9.53-6.14=72.39-4.51=4.27+0.82=27.37+3.07=

1.27-0.41=58.24-3.04=7.73-5.68=55-45.8=

9.52-5.6=47.18-4.47=3.07-0.28=99.55-8.64=

一、口算。

4.2+0.7=9.4+3.5=88.3-6=0.56-0.14=

6.9+0.2=8.7-2.5=9.2-2.7=0.71-0.09=

1.4-0.6=3.8+9.3=23.5+6=0.94+0.21=

1+0.7=7.7-3.1=9.6+0.8=0.6+0.01=

3.4+0.5=3+2.1=98.5+4=0.78-0.23=

二、笔算。

2.45-0.73=95.43-6.56=9.06+2.78=98.4+5.7=

9.65+3.77=43.92-7.77=3.32-0.06=26.93-6.78=

3.3+0.4=67.68-1.24=7.83-6.67=72.1+9.5=

8.4+3.81=79.24-9.39=2.6+0.91=48.24-2=

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