人教版四年级数学下册小数加减法综合练习题51.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51.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51
一、口算。
2.7-0.1=1.7+1.4=34.6-7=0.87-0.24=
3.4-0.2=9.3+1=8.7+3.4=0.98-0.29=
4.4+0.9=4.3+5.3=18.5-5=0.83-0.1=
7.8-0.7=5.1+0.3=8.1+4.5=0.63-0.27=
2.8-0.9=8.8+1.4=81.1-1=0.78+0.31=
二、笔算。
2.42+0.6=72.78-2.44=8.35+3.84=60.6+13.7=
9+3.18=81.76+6.79=8.75+0.52=69.92-8.74=
8.5+0.94=94.36-5.49=7.98-4.38=80+47.2=
7.09-3.68=41.46-1.61=4.41+0.27=81.18+3.22=
一、口算。
4.1-0.1=9.2+4.2=62.3+8=0.52-0.41=
8.8+0.4=9-2.1=9.5+4.1=0.56+0.35=
8.5-0.2=8.3+5.7=85.1+6=0.76+0.11=
3+0.3=7.7-1=8+0.2=0.92-0.23=
4.1+0.7=8.8+8.3=13.4+8=0.95-0.02=
二、笔算。
5.21+0.29=72.44-2.56=7.03-5.28=64.9-43.1=
9.1-6.25=43.75-3.23=8.96-0.68=61.25-5.12=
7.46+0.73=50.08-7.86=8.3+6.24=51.5-2.5=
8.37-4.58=27.1-2.59=4.37+0.6=14.9+4.9=
一、口算。
7.5-0.8=5.3+0.7=22.8+2=0.72+0.32=
1.6+0.7=8.7-4.8=6.8+4.8=0.71-0.49=
3-0.3=0.8+8.8=92.4+2=0.5-0.18=
7+0.9=7.5+1.8=7.1-3.9=0.99-0.3=
4.1-0.5=9.3+1.8=17.3-8=0.97-0.24=
二、笔算。
7.49-0.88=13.91+9.68=9.88-5.33=61.7-20.7=
9.01-4.01=13.91+7.22=3.52-0.41=97.99-9.23=
6.77+0.72=90.84-6.61=7.27+4.83=63.5+45=
9.6-4.44=13.45-5.67=8.79+0.84=85.28+5.47=
一、口算。
1.9-0.8=9.7+0.1=63.7+5=0.83-0.13=
5.6+0.3=6.9+0.6=9.9-5.2=0.75-0.07=
4.4-0.9=1.5+7.3=73.1-4=0.81-0.08=
5.6+0.5=6.7+4.1=9.3+4.5=0.73-0.31=
8-0.5=6.6+0.9=80.6+7=0.82-0.09=
二、笔算。
2.78+0.02=22.79-5.6=7.98-1.03=95.3-47.7=
8.64-1.19=39.8-2.76=1.9+0.55=96.03+6.98=
6.63-0.62=40.18+7=7.67+4.36=90.4-17.4=
9.22-6.82=17.08-4.82=7.54+0.99=32.81-3.34=
一、口算。
7.1-0.7=7.1+8.8=36.6+6=0.86-0.29=
7.6+0.3=6.4-2.3=8.6+3.8=0.76-0.39=
3.2-0.1=1.9+0.8=73.8+2=0.59-0.18=
9-0.8=5.8-1.9=6.1-4.2=0.97-0.37=
4.2+0.6=8.1+4.3=29.6+1=0.64+0.39=
二、笔算。
2.39+0.32=20.48+2.17=7.74-3.72=77.2+1.6=
9.7+4.31=28.31+3.01=7.58-0.15=85.73+2.58=
3.17+0.6=53.31+3.12=7.58-3.49=61.6-34=
9.26-4.75=42.18+3.58=3.33-0.61=74.56-3.26=
一、口算。
7.6-0.2=9.6+1.2=69.7+6=0.52-0.3=
5.7+0.6=8.2-0.2=9.6+3.9=0.52+0.06=
3.8+0.3=9.6+3.9=68.9-8=0.59+0.31=
1.3+0.7=5.5-3.5=7.7+5.7=0.9-0.44=
5.2-0.1=0.5+5.7=43.1-8=0.75-0.34=
二、笔算。
6.26-0.88=38.08-2=8.26+6.67=55.1+17.4=
8.3+2.61=50.2-9.11=7.2+0.68=96.27+1.99=
9.88-0.78=88.11+3.32=9.45+6.4=94.5+30.8=
7.81-5.95=72.7-4.05=9.62-0.93=66.61-3.49=
一、口算。
3+0.3=7+2.8=38.4+5=0.59+0.01=
4.1-0.9=6+2.9=7.2-0.8=0.73-0.21=
8.9+0.7=7.3+2.8=71.9+7=0.76-0.15=
8.8-0.1=5.7+3.8=6.7-2.3=0.75-0.32=
2.9+0.6=7.7+0.9=98.8-7=0.78-0.38=
二、笔算。
2.48-0.24=53.23-7.65=8.55+2.26=64.1-38.1=
7.74+5.52=26.09+1.6=1.62+0.81=45.1-7.57=
6.3+0.97=75.56-7.69=9.58-6.52=59.1-37=
8.65+2.49=65.22+6.9=1.26-0.37=41.3-1.39=
一、口算。
2.3-0.2=3.4+8.9=30.6-1=0.74-0.06=
8.4+0.3=7.5+4.6=7.5+0.9=0.56+0.31=
7.5+0.2=5+8.9=75.8+5=0.89-0.06=
8.8-0.3=5.6-0.7=8+3.6=0.56-0.02=
5.4-0.8=4.2+2.1=12.6-6=0.76+0.01=
二、笔算。
8.96+0.95=78.06-9.75=7.75-4.61=78.8-8.9=
9.96+5.2=75.88-3.01=3.59+0.51=61.11-9.22=
4.94-0.29=60.2-9.02=8.33-3.06=53.1-19.5=
9.5+1.58=20.3-7.07=5.9+0.61=69.87-6.27=
一、口算。
1.8+0.4=0.6+2=91.5+1=0.66-0.34=
4.6+0.9=9.5-1.1=7.3+0.9=0.68+0.48=
6.7-0.6=3+0.3=27.9-7=0.7+0.06=
3.2+0.5=5+0.3=6.7+3.2=0.53-0.33=
6.3-0.4=7.2+8.8=53.2+8=0.75+0.23=
二、笔算。
2.57-0.96=37.9+4.6=7.58+1.55=51.7+9.7=
7.52+1.4=82.23-9.01=9.9+0.91=71.32-4.69=
6.54+0.42=83.02-3.39=7.66+3.96=96.2-26.4=
8.57+1.07=50.86+1.32=6.72-0.03=79.13-6.64=
一、口算。
3.4+0.4=6.3+7.4=40.3+8=0.83+0.07=
2.9-0.1=8.3-3.3=6+2.1=0.57+0.26=
4.4-0.4=9.8+6.1=71.5-7=0.79-0.23=
8.9-0.2=5.2-4.4=6.1-4.5=0.74+0.02=
7.7+0.8=6+6.7=68.8+5=0.77-0.02=
二、笔算。
1.75-0.95=81.39-4.97=8.11+4.33=90.4+32.9=
9.72+5.29=92.14+5.88=8.01-0.25=69.55+3.13=
2.36-0.49=32.04+1.62=8.19+3.57=54.9+23.2=
7.54+6.8=79.07+3.53=6.85-0.71=35.64+7.37=
一、口算。
8.9+0.5=5.7+9.4=69.3+5=0.99-0.26=
8.9-0.1=8.7+3.1=9.3+4.3=0.58-0.01=
8.3+0.8=4+4.5=75.5+4=0.78-0.1=
5.1+0.3=8.4+3.4=9.5-2.3=0.9+0.04=
7.4+0.7=5.2+0.7=83.1-1=0.6-0.18=
二、笔算。
2.8+0.35=89.11-7.04=8.06-1.03=86.7-33.6=
9.82+2.19=15.42+1.77=6.22-0.16=89.17-9.68=
4.11+0.08=27.75-7.49=9.66+1.41=87.3-12.4=
7.27+6.67=38.66-4.16=3.97-0.93=48.79-5.77=
一、口算。
6.6-0.4=1.1+3.6=85.2+6=0.51+0.36=
3.9+0.7=9.3+1.2=6.9-2=0.77-0.01=
1.9-0.8=5.3+4.9=40.3-7=0.5+0.37=
4.2-0.5=5.8-3.6=8.2+3.8=0.99+0.22=
5.5+0.7=4.1+1.8=79.6+4=0.53-0.19=
二、笔算。
7.01+0.1=31.1-8.05=9.58-2.51=82.8+20=
9.12-4.69=83.76-6.74=6.63+0.92=84.18-3.45=
6.05+0.26=98.64-1.6=8.38+6.13=79.9-41.7=
8.62+3.49=45.97+7.79=2.98-0.92=90.3-5.24=
一、口算。
1+0.8=2.3+3.5=79.7+3=0.78-0.07=
7.8+0.5=7.3-0.3=8.1-5.6=0.99+0.49=
1.1-0.1=4.3+1=95.8-1=0.9+0.31=
5.6+0.8=6.3-3.1=6.9+3.3=0.6+0.32=
4.2+0.3=5.4+9.9=50.8+3=0.74+0.09=
二、笔算。
4.5-0.76=55.58-7.91=8.64-2.3=79.9-34.2=
9.77-4.41=44.46+3.52=5.33+0.28=66.27+9.99=
3.81-0.87=92.77-4.92=7.5-4.5=67.8+26.7=
9.56-4.93=60.43+4.73=1.82-0.68=62.29-5.86=
一、口算。
8.5-0.6=6.5+1.7=78.8-3=0.93+0.15=
4.5-0.3=6.5-3.7=7.1+5=0.78-0.23=
3.5-0.7=2.8+5.8=65.1-4=0.73+0.44=
1.7+0.2=5.8-3.1=6.4-5.6=0.76+0.17=
1.6+0.4=8.9+0.1=83.9+8=0.61+0.1=
二、笔算。
1.44-0.28=57.87+6.98=9.12+4.88=87.3+3.1=
7.79-4.5=96.62-8.29=8.22-0.56=78.87-3.38=
1.21+0.62=45.04+4.3=9.53-6.69=97.6-45.9=
8.97+6.54=35.48+5.76=2.12-0.34=76.87-5.41=
一、口算。
4-0.1=0.3+1.5=42.1+5=0.79+0.07=
6.6+0.7=9.1-2.9=8.7-0.5=0.95-0.2=
8.9-0.9=3.9+6.5=41.6+9=0.55+0.46=
8.1+0.6=6.3+4.5=9.5+5.3=0.52+0.46=
7.7-0.2=5.5+0.9=74.9+6=0.66+0.07=
二、笔算。
5.6-0.14=41.68-7.86=8.97+1.73=94.8+35.7=
7.68-4.19=73.1-2.2=6.94+0.96=10.04-1.12=
3.99+0.31=41.79-8.2=9.07-4.57=78.5-42.4=
9.39+4.84=59.73-4.27=6.71+0.58=50.44-5.96=
一、口算。
8.6+0.4=1.8+9.1=38.7+9=0.55+0.12=
5.6-0.3=9.3+0.7=9.5-0.1=0.51-0.35=
4.5+0.7=5.2+2.5=68.3+8=0.7+0.01=
4.7-0.7=6-1=8.6-5.5=0.63-0.19=
2.9-0.4=5.6+8.9=94.3+3=0.92+0.13=
二、笔算。
8.9-0.63=59.05-2.47=7.59-1.18=99.2-12.2=
7.41+5.25=87.85-1.32=8.57-0.02=70.89+2.57=
2.64-0.28=64.19+3.21=9.64-4.35=59.1-41.3=
9.63-6.43=24.69+1=8.15+0.98=94.45-4.69=
一、口算。
7.4+0.4=2.2+4.7=89.2-2=0.52-0.47=
4.6-0.5=5.8-2.7=7.1+3.4=0.62-0.23=
3.4-0.2=4.6+0.6=20.6+1=0.77+0.25=
8.4+0.9=6.9+3.9=7.9+4.6=0.57+0.41=
5.2+0.2=7.7+1.6=55.3+7=0.58+0.3=
二、笔算。
2.1-0.17=15.42-5.9=8.68+3.75=51.8+48.6=
8.06-4.91=99.94+7.22=1.31+0.48=55.23-5.68=
7.31+0.67=45.33-3.8=7.47+6.58=61.8-22.3=
8.73+6.66=79.83+5.11=4.31-0.73=32.38-3.67=
一、口算。
7.7-0.3=5.8+9.1=34.6-6=0.81+0.15=
6.1-0.1=7.8-0.5=9.9+5.7=0.71+0.39=
7.4-0.8=7.8+1.9=41.8-4=0.75+0.46=
1.6+0.3=8+2.1=7.8-5.4=0.57+0.33=
6.6+0.2=6.7+6.4=73.5+9=0.68+0.02=
二、笔算。
6.97+0.21=69.98+3.73=9.5+2.52=79-13.6=
9.33-4.07=60.68-8.6=6.62-0.4=75.42-6.96=
6.57-0.78=53.47-9.28=7.07+6.86=59.2-8.3=
7.66-5.66=13.51-3.47=6.95+0.3=36.33-3.16=
一、口算。
2.2+0.2=4.5+9.1=77.4-5=0.92-0.43=
6.3-0.9=8-0.6=9.1+1.2=0.88-0.47=
6.7+0.3=5+5.5=99.8+1=0.51-0.27=
7.6+0.2=6-4=6.3-2.8=0.82-0.09=
6.1+0.7=4.5+8.6=62.1-9=0.53+0.08=
二、笔算。
8.69-0.17=57.44+9.49=9.2-6.81=61.3+36=
7.34+3.75=61.62+3.18=9.09+0.96=30.74-2.32=
9.91+0.05=67.21-8.24=9.48-2.31=74.8-27.6=
7.53+5.82=91.73-1.8=4.98+0.14=10.08-9.89=
一、口算。
1.8+0.4=6+5.6=28.3+6=0.64-0.31=
8+0.6=6-1.2=9+5.8=0.79+0.4=
6.1-0.2=9.9+0.8=17.4-2=0.59+0.38=
3.3+0.5=6.3+4.3=8.3+2.3=0.51+0.45=
4.3+0.8=6+4.8=26.2-9=0.85+0.47=
二、笔算。
1.17-0.5=23.69-6.99=7.47-3.35=73.5+14.1=
7.08-6.07=57.83+1.76=5.39-0.46=75.26+4.18=
4.7-0.88=77.96+9.16=7.88+3.69=70.2-24.7=
7.8+4.14=92.12+2.31=8.18-0.47=55.88-4.89=
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