人教版四年级数学下册小数加减法综合练习题18.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18.docx

人教版四年级数学下册小数加减法综合练习题18

一、口算。

4.2-0.3=1.4+2.1=81.5+7=0.76-0.28=

4.2-0.3=7.4-0.9=6+3.8=0.65-0.31=

7.8-0.6=6.4+6.8=16.7-5=0.65-0.11=

8.4-0.9=8+1.7=7.5-5.5=0.97+0.42=

3.2-0.4=9.4+7.8=10.5-8=0.57+0.46=

二、笔算。

4.35-0.41=57.4-6.09=8.58+4.82=99.6+5.1=

7.99+4.3=85.35+4.65=7.61-0.4=53.76-1.46=

4.85+0.75=93.13-7.47=8.07-1.03=61.9-1.4=

7.84-4.32=65.71-8.14=1.14-0.02=34.13+1.58=

一、口算。

8.5-0.6=4.1+2.9=84.9-8=0.81+0.18=

8.4-0.7=9.7-4.3=9.9+3.7=0.6-0.26=

1.5-0.8=1+8.8=32.1+1=0.98+0.11=

3.7+0.7=9.6-1.5=8.2+2.5=0.7-0.49=

7.6+0.9=4.8+6.2=32.8-3=0.54-0.02=

二、笔算。

5.49+0.48=97.18-6.44=9.55+2.21=67.4+22.9=

7.97-2.01=39.01+2.03=7.95-0.55=69.6+9.97=

9.49-0.78=97.54-7.84=9.46-4.12=77-41.4=

8.87+1.94=67.75+8.47=7.17-0.78=86.65-8.07=

一、口算。

5.8+0.6=2.7+3.4=35.4+7=0.94-0.28=

7.8-0.5=9.2+0.6=6.8-4.3=0.62-0.43=

3.8+0.5=2.8+0.1=39.3+1=0.57+0.08=

1.6-0.6=8.2+4.9=6.7+3.6=0.83-0.12=

3-0.2=8+5=44.9-5=0.74+0.32=

二、笔算。

8.06-0.35=23.02-2.29=9.73-5.54=70.1+13.4=

9.58+2.01=37.52+8.39=2.02+0.07=32.53+9.49=

2.74+0.5=31.55-4.65=8.03+4.01=61.8-45.2=

9.03+3.03=21.68-6.46=3.51+0.32=91.97+2.92=

一、口算。

6.7-0.4=4.4+5.1=46.5-8=0.67-0.48=

7.4-0.6=9.8+3.5=6-4.8=0.77+0.21=

6.9+0.2=5.4+1.1=72.4-2=0.79+0.02=

2.2-0.2=5.2+3.5=7.3+2.3=0.94-0.06=

2.3-0.4=0.5+6.9=71.4-6=0.58-0.07=

二、笔算。

1.54-0.92=57.37-7.3=7.22+4.25=74.1+18.3=

8.5-2.26=30.89+4.64=4.4-0.21=76.01+5.97=

5.93+0.76=34+6.93=7.86+2.82=55.7-4.5=

9.92-5.65=97.17-8.67=4.5+0.37=68.69-6.76=

一、口算。

3.5+0.6=3.3+1.9=90.7-5=0.77+0.05=

1.7-0.9=6+0.2=6.9-0.3=0.93+0.26=

6.9-0.5=5.5+9.7=74.8-6=0.78-0.43=

1.8-0.4=7.2-1=7.7+2.5=0.88-0.16=

6.4-0.6=4+8.3=32.9+5=0.53+0.05=

二、笔算。

6.03-0.38=47.38-7.41=7.33+5.9=76.8-5=

7.86-2.27=10.71+1.76=9.09-0.9=79.78+9.27=

1.31+0.29=59.84-8.3=7.02+1.4=94.8-27.7=

8.05-6.11=76.66+9.77=5.7-0.36=93.99-3.55=

一、口算。

8.1+0.9=5.8+1.1=69.7-4=0.99+0.08=

3.4+0.1=7.7+2.5=9.8+5.2=0.51+0.48=

8.2-0.3=8.3+4.6=42.8-1=0.97-0.29=

1.9-0.3=8.3-0.4=8.9+0.7=0.84+0.28=

3.1-0.3=4+9.6=16.5-8=0.88+0.4=

二、笔算。

2.16+0.1=23.59-1.43=8.99+3.08=73.9+36.5=

8.72-4.1=48.3+8.75=9.04+0.09=48.9+5.29=

3.08+0.35=23.29-4.27=9.02+6.29=88+7.1=

8.04+2.86=86.97-1.11=7.08+0.77=18.53+5.32=

一、口算。

6.4+0.6=1.6+4.6=14.5+4=0.7-0.01=

7.3+0.6=7.2+4.1=6+1.9=0.88-0.05=

4.2-0.7=9.3+9.8=54.2+8=0.93-0.09=

2.5+0.6=8.1-4.1=6.6-0.6=0.61-0.49=

4.9+0.1=0.4+9=91.5+9=0.54-0.42=

二、笔算。

3.59-0.78=54.25-2.24=8.48-6.88=72.9+24.7=

7.87+6.95=67.19+4.28=3.02+0.96=25.78-1.24=

6.99+0.42=27.98-1.44=9.71+5.95=62.6-31.5=

7.3-3.11=17.92+8.03=1.64+0.49=88-2.79=

一、口算。

7.9-0.3=1.2+7.7=38.8+2=0.72+0.42=

1-0.6=6.5+4.5=8.4-1.6=0.76+0.03=

2+0.1=7.8+1.3=15.4-3=0.72+0.43=

3.2-0.8=5.8+4.8=9.1-4.6=0.94-0.15=

1.6+0.6=7+0.4=25.8+9=0.94-0.49=

二、笔算。

8.18+0.17=51.97-7.07=8.22+4.18=55.4-8.4=

8.26-1.96=90.56-9.77=7.24+0.38=49.01-2.01=

4.69-0.67=69.97+3.39=9.94-1.84=74.4-5.8=

7.22-1.38=84.01+8.55=6.96+0.87=58.11-1.45=

一、口算。

1.5+0.1=3.7+4=33.4-3=0.79-0.25=

8.4-0.8=5.8-1.6=6.3+2.1=0.91+0.28=

7.5-0.7=9.4+7.8=66.5+9=0.7+0.14=

8.9-0.5=6.6+3.1=8.3-5.1=0.53+0.37=

7.4-0.9=4.3+4.7=75.7+5=0.77+0.43=

二、笔算。

6.75+0.96=64.87+7.14=8.44+6.86=68.2+21.5=

9.15-4.74=51.24+5.02=5.67+0.55=93.17-7.96=

8.83-0.04=25.6-1.22=8.07-5.58=72.5-14.3=

8.25-1.27=32.39-1.43=5.44+0.65=40.54+2.93=

一、口算。

3.8-0.7=7.6+6.8=77.1+2=0.88-0.14=

1-0.5=7-4.4=9.1-1.8=0.73+0.38=

8.7-0.9=3.2+8=12.6-8=0.56+0.14=

1.4+0.8=7.5+3.1=9.6-4.7=0.76+0.07=

6.8-0.7=7.5+2.2=48.1-3=0.86+0.41=

二、笔算。

5.7+0.52=93.14-2.62=7.07+4.46=61.9+34.4=

8.57-5.93=49.91+8.25=5.97-0.07=65.27-6=

4.07+0.45=92.84-4.65=7.11-1.21=94+6.9=

8.75+6.29=87.28-7.5=3.49+0.88=36.61+1.21=

一、口算。

4.8-0.6=7.5+6.7=60.4+6=0.71+0.08=

7.6-0.1=7.9+1.6=8.6+5.2=0.95+0.26=

5.9+0.1=0.5+1.8=11.7+8=0.65+0.2=

2.7-0.1=5.6-0.3=6.8+4=0.54+0.49=

6.2+0.5=9.3+2.7=42.1+2=0.93-0.3=

二、笔算。

5.01+0.86=75.78+1.07=8.58-5.47=57.5-17.7=

7.29-1.33=90.18+7.52=3.36+0.79=62-8.8=

3.69-0.84=23.02+4.23=9.46+2.43=93+7.4=

7.23-1.89=68.89+8.7=6.77-0.48=41.17+5.46=

一、口算。

3-0.7=8+4.6=77.9-2=0.62+0.12=

4.3+0.4=5.2+4.5=6.3+4.1=0.6+0.43=

5.1-0.1=2.4+0.1=77.2+6=0.85-0.4=

7-0.4=6.9+0.2=8.5+1.5=0.65+0.49=

8-0.8=1+2.7=94.6+1=0.92-0.38=

二、笔算。

4.32+0.65=47.77-7.63=7.22+3.21=59.3+5.4=

7.93-6.72=61.23+7.04=1.81+0.73=28.76+6.02=

3.48+0.23=91-2.22=9.28-5=55.1+47.3=

9.35-3.94=84.29-1.14=9.5+0.88=31.45+3.15=

一、口算。

8.1-0.3=1.7+8.2=42.1+6=0.98-0.23=

1.6+0.8=8.5-1.7=9.3-0.6=0.55-0.01=

1.4-0.5=8.3+2.7=43.9-7=0.79-0.23=

5.2+0.1=5.1-0.5=7.8-2.6=0.91-0.06=

5+0.9=4.8+5.1=81.2+5=0.72+0.15=

二、笔算。

3.1+0.49=60.71+5.8=8.9+5.97=86.7-10.2=

8.29-1.6=44.39+2.73=6.6+0.58=20.73-8.02=

4.64-0.62=73.21-6.3=9.55-6.78=75.5-8.5=

8.26+1.72=39.09-8.69=2.21+0.59=91.81+1.23=

一、口算。

5.8-0.9=3.3+6.1=10.5+5=0.96-0.15=

8.4-0.7=7.3+3.7=8.9+5.4=0.55+0.47=

4.4+0.7=3.8+3.7=92.8-6=0.89-0.41=

6.3-0.8=9.4-0.2=9.2-1=0.8-0.35=

8.5+0.6=9+4.7=21.7+3=0.93-0.08=

二、笔算。

1.29-0.11=45.06-3.86=8.34+4.29=55.5-2.3=

7.23-1.18=32.98+6.17=6.97-0.51=23.83-5.54=

5.44+0.45=13.58+5.94=9.16-3.05=73.8+2.4=

9.31-4.79=57.54+6.02=6.4-0.4=38.77+1.78=

一、口算。

8.1-0.2=3.3+2.1=42.7-9=0.51+0.36=

2.6-0.5=9.4-2.6=7.3+4.6=0.51+0.1=

7.3-0.8=3.9+3.9=50.6+8=0.55+0.08=

3.6+0.2=6.1+0.4=9.2-5.6=0.66-0.29=

7+0.2=4.1+1.1=56.7-4=0.96+0.49=

二、笔算。

5.27-0.92=62.19-4.61=9.85-2.79=88.9+21.2=

9.8+1.74=62.36-4.62=6.95-0.45=49.1+4.86=

1.14-0.47=95.07-1.46=8.77+1.31=59.8-46.4=

9.95+1.74=22.85-3.85=9.84-0.88=88.01+4.4=

一、口算。

6.7+0.4=0.3+1.6=30.4+1=0.61-0.13=

4.3-0.3=9.9-4.9=8.9+0.6=0.77+0.44=

2+0.9=4+5.4=57.6+9=0.58+0.36=

5.9+0.8=7.5+2.9=7.8-1.2=0.95-0.09=

5.4+0.4=0.5+9.9=75.4+1=0.72+0.13=

二、笔算。

1.52+0.61=52.73-7.65=7.36-4.04=73.4+39.9=

9.19-5.15=75.76+8.4=8.32+0.01=81.02+6.71=

4.52+0.3=33.04-8.07=9.71+2.08=68.5-18.5=

7.73-4.91=68.15-7.35=4.08+0.1=98.89+2.88=

一、口算。

6.1+0.1=5.7+1.6=69.7+3=0.89+0.28=

3.5-0.9=5.1-3.1=8.2+1.5=0.52-0.1=

1.8-0.4=0.7+0.4=28.1-7=0.87+0.26=

8.6+0.2=6.4-2.7=8.3-2=0.95-0.44=

8.6+0.4=0.1+2.4=25.2-9=0.61+0.47=

二、笔算。

6.59-0.31=49.82+8.23=9.39+6.18=51.2-44.2=

7.25+2.39=28.15+7.08=7.58+0.39=54.25+9.87=

7.37+0.7=89.79-3.23=7.53-2.44=61.3-16.7=

7.18-5.05=85.41+6.13=7.25+0.96=42.03-2.32=

一、口算。

3.3-0.1=1.6+6.4=44.7+6=0.61+0.08=

8.9+0.9=6.4+1.6=9.1+0.5=0.59-0.47=

3.6-0.4=1.9+6.6=79.5+2=0.98-0.19=

2.1-0.1=9.6+2.1=7.9+1.3=0.52-0.45=

1.4-0.6=1.8+5.6=24.8+3=0.73+0.26=

二、笔算。

9.68-0.17=45.76-1.34=8.73+5.62=86.5-28.4=

7.19-2.28=91.35+7.99=6.75-0.35=33.5-5=

8.88-0.6=51.84+7.74=7.27+4.42=84.7+4.4=

9.53-6.9=93.31-6.3=8.1+0.97=66.85+1.42=

一、口算。

4.8+0.6=3.3+7=75.2-7=0.84+0.15=

8.4+0.5=6.3+0.1=7.6+5.9=0.93+0.31=

7.5-0.1=2.9+1.2=13.7+8=0.6-0.01=

1.9+0.5=5.8+1.5=7.5-4.2=0.96+0.48=

5.6+0.4=3.1+5.2=93.7-8=0.77-0.01=

二、笔算。

4.49-0.1=42.87-3.91=9.22+5.43=66.6+1.7=

9.81-3.29=72.95+9.95=3.45-0.86=58.35-5.13=

2.31+0.15=21.37+4.96=9.78-4.03=54.7-32.1=

9.22-1.8=82.84-5.14=3.22-0.73=92.28-7.43=

一、口算。

3.8-0.8=9.6+8.9=91.2+8=0.96-0.17=

2.9-0.1=6.8+3.3=7.8+3.7=0.89-0.46=

4.5-0.7=0.9+7.1=38.9+5=0.61+0.03=

3.1-0.5=7.1-4.2=9.8-5.9=0.98-0.23=

3.6-0.8=7.9+3.1=96.3+1=0.79+0.35=

二、笔算。

9.46+0.05=82+8.83=7.92+1.34=77.7-30.4=

8.6+3.61=37.04+7.01=7.77+0.92=72.02-3.07=

6.61+0.19=37.97-2.73=7.41+4.83=95+18.8=

8.14-6.33=11.02+9.04=2.36-0.24=10.67+9.43=

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