四年级数学下册小数加减法练习题精选80.docx

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四年级数学下册小数加减法练习题精选80.docx

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四年级数学下册小数加减法练习题精选80.docx

四年级数学下册小数加减法练习题精选80

一、口算。

2.6-0.7=2.8+6=31.2-4=0.77+0.22=

2.3-0.9=8.2-3.8=8+1.1=0.75-0.26=

5.6+0.4=4.6+3.9=60.2+8=0.78+0.02=

1.9+0.3=8.2-3.9=9.4+5.9=0.88+0.15=

7.8+0.3=8.9+7.9=52.9+6=0.5-0.42=

二、笔算。

1.97+0.79=79.42-7.77=9.6-6.15=91.3+17.9=

8.79-5.83=64.67-4.58=3.51+0.42=24.69-8.09=

6.21+0.91=75.18+7.81=7.77+5.26=90.4-21.7=

7.79+1.09=63.11-4.65=3.3-0.32=87.58-3.15=

一、口算。

3.9-0.8=3+8.7=29.9+3=0.68-0.25=

6.9-0.2=9.6+4.9=7.9+3.7=0.99-0.16=

1.7+0.9=3.8+4.3=47.4-3=0.75-0.16=

4+0.7=9-3.9=7.9-2.4=0.96-0.35=

8.5-0.9=3.5+2.3=25.8-7=0.81+0.35=

二、笔算。

4.98-0.51=80.51-4.14=8.37+5.44=90.5-45.4=

7.69+4.15=64.53-2.3=8.55+0.49=19.37+8.19=

9.24-0.39=24.65+8.39=9.63+6.54=72.8+19.1=

9.97+2.37=65.46-7.51=4.51+0.51=46.87+4.19=

一、口算。

3.6+0.9=3.6+2.8=99.7+4=0.95-0.11=

2.4-0.9=6.5+4.1=8+0.6=0.92-0.05=

8.4+0.4=7.1+0.1=32.5-4=0.68+0.23=

1.9-0.1=5.6+0.7=7.2-4.6=0.92-0.44=

6.2-0.7=3.9+4.7=10.8+7=0.92-0.44=

二、笔算。

5.78+0.23=70-9.39=7.38+3.89=68.8-24.2=

7.27+1.32=83.1-9.05=3.02-0.9=22.92-4.26=

1.38-0.18=32.97-2.18=9.36-3.95=85.3-44.1=

7.69-6.18=22.01+2.15=9.47+0.81=65.95-7.91=

一、口算。

2.2+0.6=7.3+5.2=87.6-1=0.61+0.31=

8.7-0.6=7.2+4.6=6.8-5.1=0.85-0.32=

5.4-0.3=9+9=91.2+8=0.82-0.2=

5.4-0.9=7.6+1.3=7.3-0.4=0.68-0.2=

7.5-0.3=7.6+2.6=83.2-4=0.96+0.07=

二、笔算。

3.89+0.78=26.3-9.03=8.8+3.51=50-10.4=

8.62-6.85=22.91-1.23=5.56+0.88=64.33+6.86=

7.11-0.33=65.95+9.42=9.65-6.09=68.6-28.3=

9.45+2.01=17.47-9.56=5.62+0.74=22.68+2.54=

一、口算。

7.5+0.2=0.6+9=68.7-2=0.75+0.07=

2.8-0.2=5.4+0.5=7.7+1.5=0.76-0.3=

8.3-0.6=6+0.9=95.4-3=0.96-0.06=

1.7-0.5=7-2=9.5-3.1=0.8-0.13=

7.4+0.3=5+1.9=33.1+5=0.91+0.17=

二、笔算。

1.85-0.81=58.94-9.44=8.51-5.56=53.2-42.9=

7.06+2.79=72.3+5.39=3.08-0.46=77.28-1.34=

7.1-0.86=19.48+2.08=8.6-4.51=93.9+28.4=

7.49-6.49=55.38+3.34=1+0.82=36.35+5.57=

一、口算。

8-0.4=8.5+2.2=64.5-2=0.64+0.06=

8.8-0.6=5.1+0.3=7.6+2.7=0.93+0.19=

6.6+0.3=9.3+0.6=31.6-5=0.63-0.4=

5.8+0.3=8.1-1.2=9.2-0.9=0.99-0.04=

5.6-0.6=3.7+2=22.3+6=0.77+0.33=

二、笔算。

6.15-0.9=21.92+9.47=9.46-1.69=90.8+34.2=

9.95+2.64=57.92+4.68=2.61-0.22=80.68-1.36=

6.88-0.24=85.59-5.29=7.57+5.61=58.8-21.5=

7.97-6.26=38.46-3.81=4.96-0.88=62.47-1.6=

一、口算。

7.1-0.1=4.9+2.1=75.8+9=0.97-0.14=

7.4+0.9=5.1-3=9.9-4.3=0.56-0.28=

4.2-0.6=3.2+1.8=23.1+3=0.9+0.15=

2.4+0.4=6.4-2.3=9.8-0.5=0.94-0.22=

5+0.9=0.1+3=15.4-5=0.97+0.36=

二、笔算。

6-0.99=19.47+5.71=9.76-2.95=86.2-28.2=

8.72+3.02=12.89-6.12=5.78-0.7=12.6+9.94=

2.01-0.01=90.42+4.38=9.06-4.84=70.8-23.3=

8.44+2.01=46.93-9.26=5.31-0.84=86.1+1.26=

一、口算。

8.1+0.5=5.3+1.1=53.2-5=0.84+0.42=

3.2+0.2=6.7-2.8=7.3+1=0.55+0.44=

2.3+0.5=0.1+5.3=96.5+9=0.95-0.49=

2.4+0.6=6.2+4.4=6.1+2.3=0.69-0.24=

6+0.4=2.3+3.6=40.2-2=0.7+0.11=

二、笔算。

7.74-0.09=48.43+7.99=9.97+4.99=74.3-45.5=

9.2-6.52=33.75-3=1.23-0.88=73.27-7.75=

3.58-0.12=39.76-3.93=7.67-1.27=61.5-19.6=

7.29-3.85=85.22-7.47=2.66-0.03=78.67+6.89=

一、口算。

1.4+0.9=1.6+5.9=76.6+2=0.68-0.45=

1.6-0.7=6.4-0.2=7-0.1=0.68-0.22=

8.4+0.8=5.5+1.6=10.2-4=0.94+0.36=

6.1-0.1=7.3+0.5=6.3+4.5=0.52+0.42=

2.4-0.6=8.4+1.5=37.1-4=0.63+0.19=

二、笔算。

4.13-0.78=56.93-1.54=8.13-1.38=61.6+39.8=

8.47-6.46=52.42-2.36=6.95+0.83=84.26+7.36=

9.65+0.93=83.08+9.91=8.75+4.85=56.8-35.6=

9.68+3.35=81.68+6.42=6.83-0.81=82.88+4.33=

一、口算。

1.8+0.1=9+4.1=81.8-8=0.94-0.28=

2.8-0.6=5.3-3=9.9+1.7=0.65-0.11=

2.9+0.3=9.6+6.5=23.1+8=0.62-0.34=

1.1+0.7=7.8-3.9=7.9+2.3=0.82-0.38=

4.5-0.3=6+8.4=26.5-6=0.7+0.03=

二、笔算。

1.32-0.77=22.33+8.76=7.16+3.5=78.3+36.2=

7.67+6.36=70.54-2.66=2.82-0.19=80.55+9.03=

5-0.31=32.95+6.77=7.27+1.43=67.8+45.2=

8.77-2.91=32.72+3.99=7.92+0.21=47.2+8.38=

一、口算。

6.1+0.3=7.4+5.3=74.9-5=0.5-0.26=

2.6+0.1=7-4.5=7.3+5.9=0.5-0.22=

4+0.8=6+7.8=65.1-9=0.79-0.3=

5.9-0.5=6.5+3.5=8+5.4=0.91-0.15=

3.6+0.3=6.7+6.2=15.4-3=0.54+0.13=

二、笔算。

1.74-0.75=17.3-9.11=8.83+1.06=98.4-12.7=

8.44+5.86=78.02+5.93=8.65-0.62=90.08+4.93=

8.39-0.91=18.84+9.21=8.25-3.77=64.8-39.8=

9.26-5.19=78.97-1.28=9.79-0.81=41.02-7.73=

一、口算。

7.9-0.4=0.1+1.2=31.9+8=0.98+0.34=

8.4-0.2=8.9-0.8=8+2.8=0.81-0.18=

8-0.1=1.8+1.7=45.4-4=0.52+0.15=

6.1-0.8=9.4-0.4=8.8-2.3=0.7+0.49=

6.4+0.3=9.8+1.8=46.7+4=0.96+0.19=

二、笔算。

7.04+0.15=91.08-6.5=7.48-6.4=89.9-36.6=

9.75-6.83=88.57-2.86=4.79-0.2=27.59+9.18=

9.13-0.94=55.37+8=9.8+6.13=56.3-30.7=

7.61+1.28=57.95-8=1.1-0.03=30.3-2.61=

一、口算。

6.5-0.9=8.4+3=42.9+2=0.53+0.13=

7-0.8=9.6+3.6=6.4+2.8=0.5-0.31=

3.8+0.8=5.5+9.2=72.6+8=0.96+0.42=

5.6+0.2=8.2+3.7=6.2+4.2=0.58+0.44=

1.1-0.6=6.6+8.6=82.7+2=0.79+0.42=

二、笔算。

6.11-0.47=78.58-8.25=9.97-6.06=93.1-17.5=

8.38+6.28=26.95+9.28=4.62-0.56=92.96-4.15=

5.82-0.58=70.69+1.31=8.97-4.77=53.8+45.9=

7.16-3.32=21.96+4.28=5.5+0.69=11.92+9.96=

一、口算。

2.1-0.3=0.7+1.4=68.4-4=0.87-0.31=

5.4+0.5=6.8-4=6.1+1=0.75+0.24=

4-0.4=1.9+4.8=92.8-3=0.59-0.14=

5+0.8=9.3+1.8=7.4+5.3=0.78-0.34=

3.6-0.3=3.6+2.7=68.6-6=0.62+0.34=

二、笔算。

6.44+0.72=71.41+5.38=8.6-3.02=80.6+41.7=

7.45-5.87=19.58-8.86=6.48+0.29=32.9-9.71=

4.99+0.87=26.88-9.76=7.29-5.35=57.3+30.8=

8.55-6.13=58.15+9.47=8.71+0.23=62.99-9.15=

一、口算。

1.8+0.3=0.8+7.9=90.6+3=0.69-0.02=

6.7-0.7=8.2+3.2=9.2-0.2=0.57+0.04=

5.4-0.8=4.7+4.4=46.1+2=0.94-0.14=

1.5+0.1=5.5+1.8=8.6-3.7=0.55-0.26=

4.9+0.7=0.9+4.7=92.7+1=0.97+0.27=

二、笔算。

6.75+0.84=70.2+5.54=8.39+6.95=79.9+19.9=

7.44+2.94=67.09-8.51=3.71+0.97=46.69-3.62=

4.84+0.47=47.34+9.7=9.35-4.09=74.5-20=

8.19-4.67=71.14-8.71=2.81-0.98=63.71-5.07=

一、口算。

3.4+0.5=8.9+8.8=94.6+3=0.66-0.05=

2.5+0.3=8.7-0.5=9.5-4.6=0.88+0.11=

8.8+0.2=1+4.6=72.3-6=0.97+0.37=

6.2+0.5=8.9-3.5=6.6+5.9=0.94-0.3=

2.6+0.5=7.8+9.8=70.8-1=0.58+0.47=

二、笔算。

3.82+0.69=81.48-3.61=9.85+1.67=86.9-5.5=

8.08-6.51=90.47-1.85=4.14+0.01=31.64+1.29=

8.32+0.54=90.35+4.08=8.94-2.45=54.1-27.5=

7.82+5.13=91.75-6.85=2.97-0.96=29.39+5.34=

一、口算。

6.8+0.5=6+3.5=91.6+4=0.57-0.42=

6.3+0.7=6.1-4.6=8.9+1.1=0.7+0.48=

2.2+0.1=4+0.5=89.8-4=0.88-0.04=

4+0.5=5.5-0.6=7.5-4=0.66+0.39=

6.2-0.3=0.1+2.2=93.3+7=0.87+0.13=

二、笔算。

1.04+0.21=40.2+3.08=7.56-1.54=53.4+25.1=

8.74-5.74=28.25+2.93=7.97+0.43=20.56-2.68=

3.35+0.61=43.36-3.62=9.66-2.37=80.1-19.4=

9.87+6.25=88.55-2.81=6.02-0.2=47.23-3.81=

一、口算。

8.7+0.1=3.9+1.1=85.6-4=0.84+0.3=

9-0.9=9.6-2.2=9.4+3.7=0.94+0.4=

7.2-0.5=7.4+2.6=75.1-5=0.93+0.34=

3.4-0.6=9.5-2.9=7.7+0.4=0.64-0.13=

5.1-0.7=1.6+4=42.4+7=0.66+0.37=

二、笔算。

9.27-0.09=75.63+8=7.9-1.19=90.4-34.8=

9.2+1.77=37.1-6.9=7.33-0.1=36.3-7.34=

2.36-0.27=91.84-7.81=7.33-2.51=68.9+36.3=

9.19-3.88=97.17-5.16=5.87-0.18=89.88-1=

一、口算。

6.3+0.7=4.5+8.2=35.4+1=0.82+0.32=

2.8-0.8=5.8-2=9.6-1.6=0.94+0.17=

4.1-0.1=9.1+0.5=51.6-7=0.95+0.4=

4+0.2=8.9-1.6=7.4+0.2=0.84+0.32=

6.7-0.4=9.7+3=38.3-2=0.62-0.15=

二、笔算。

7.47+0.92=33.58+1.19=8.06+1.79=93.5-40=

8.39-4.56=71.19-6.04=9.98+0.18=31.6-4.18=

2.17+0.54=48.4-5.42=9.76-3.32=85.8-2.9=

7.37+4.11=55.07-2.95=1.65-0.27=67.02+5.13=

一、口算。

3.8+0.1=8.4+2=92.9-3=0.74-0.14=

4.6-0.7=6.5-3.8=9.9-3.8=0.86+0.38=

4.9-0.7=3.9+6.1=25.4-2=0.6+0.27=

2.7+0.9=6.2+0.5=8.7-2.3=0.79-0.38=

7.8-0.7=0.4+1.9=26.6-6=0.9+0.45=

二、笔算。

8.46-0.03=31.43-8.24=9.81+1.86=51.9+7.2=

8.98-6.49=94.87+4.21=9.76-0.19=91.92+4.23=

6.08+0.61=17.42+3.82=8.83+5.44=54.1-8.1=

8.22-4.36=96.01+3.07=7.32-0.83=94.39-8.13=

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