四年级数学下册小数加减法练习题精选3.docx
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四年级数学下册小数加减法练习题精选3.docx
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四年级数学下册小数加减法练习题精选3
一、口算。
2.9+0.2=3+1.9=24.8+2=0.62-0.16=
7.9+0.1=5.2+0.3=8.7+5.1=0.9-0.41=
6.2+0.3=6.8+4.9=80.5-9=0.52-0.31=
6.4-0.1=7.4-4.2=9.5+5.2=0.97-0.33=
2.9-0.2=7.2+9.2=67.9-5=0.95+0.49=
二、笔算。
9.91-0.8=64.36-1.16=7.37+2.77=79.7+46.8=
8.08+5.42=68.25+5.6=8.65+0.09=16.16+5.67=
9.06-0.55=98.96+2.02=7.64-6.71=64.5+9.5=
9.9-6.25=20.04-7.28=7.41+0.78=68.27+8.86=
一、口算。
1.9-0.7=4+5.2=62.3-5=0.89+0.25=
3.3-0.9=5.9+3.1=8.4+5.2=0.76-0.2=
2.4-0.4=7.9+0.9=69.3-7=0.56-0.05=
3.1+0.3=9.7-0.8=6.4-5.8=0.57+0.21=
5.5+0.2=8.4+8.2=21.3+3=0.74+0.29=
二、笔算。
7.01-0.01=70.23+5.83=9.75-3.87=65-36.1=
8.48+2.62=45.43-1.75=4.18-0.93=40.5-4.44=
3.2-0.91=43.65+4.34=9.37+5.59=93.8+42.4=
9.62-4.53=58.28+7.73=6.67+0.92=20.82-8.86=
一、口算。
2.8+0.9=5+9.9=18.5-5=0.89+0.13=
8.3+0.1=6.4+1.1=7.7-3.3=0.62+0.37=
2.7-0.4=9.5+5.7=57.5-2=0.5+0.34=
4.6-0.3=8.3+1.2=9.8+4.6=0.89-0.13=
3.2-0.5=0.8+9.9=62.1+9=0.5-0.22=
二、笔算。
6.52-0.52=20.8+9.84=7.88+6.53=60.9-22.1=
7.11-1.32=37.94-5.05=7.71-0.63=22.84+3.91=
9.27+0.4=87.86+1.45=9.54+3.32=80.2+31.3=
9.41-5.21=80.44+3.49=5.77-0.12=75.94-4.89=
一、口算。
4.5-0.6=9.7+2.7=99.5-8=0.54+0.36=
2.9-0.1=8.5-0.5=8.3+4=0.97+0.41=
2.2-0.6=6.1+9.3=96.5+1=0.93+0.21=
7.2+0.3=6.1+0.9=9.2+3.7=0.81+0.14=
5.8-0.7=6.4+4=19.5+3=0.58-0.14=
二、笔算。
6.34-0.21=66.53+1.73=8.83-4.34=73.4-17.9=
7.21+6.67=49.55+2.97=9.28-0.91=49.98+5.16=
2.97-0.31=81.33-3.33=7.28+5.09=71.5-38.5=
9.26-1.79=23.17-9.12=2.7-0.54=15.22-5.41=
一、口算。
5.1+0.4=7.1+2.6=92.8-8=0.77+0.44=
7.1-0.3=8.5+4.5=8.8+4.6=0.95-0.38=
7.1+0.2=3.5+8=78.5-4=0.82-0.23=
8.7-0.8=5.1-3.2=9.3+3.3=0.54-0.07=
3.1-0.5=4.8+1.4=74.6-5=0.72-0.38=
二、笔算。
6.41+0.85=87.55-6.26=8.37+1.55=72.3-1.7=
7.24+5.47=76.67+3.63=8.54-0.8=65.92-3.59=
1.54-0.26=66.71-2.51=8.59-6.25=92.6-31.6=
7.12-5.13=40.52+6.36=3.84+0.78=75.28-9=
一、口算。
1.9+0.3=9.5+2.7=53.5-7=0.58-0.41=
7.8+0.9=7.4+0.6=7.2+0.8=0.91+0.08=
3.6-0.2=3.6+3.3=62.3-7=0.95+0.27=
8.4-0.8=8.7-1.9=9.4+5.2=0.96+0.39=
2.7+0.4=4.8+1.6=92.9-9=0.67+0.25=
二、笔算。
5.9+0.87=79-1.85=7.21+5.47=77.2+22.6=
9.61-3.59=20.48+2.95=1.97+0.97=90.76+6.74=
6.94-0.3=44.42-7.57=7.71+3.82=54.8+43=
9.13-5.15=48.68+7.51=6.59+0.6=29.95-1.88=
一、口算。
7.7+0.8=6.6+9.8=14.9+9=0.84-0.35=
5.9-0.9=5.5+2.6=8.5-1.2=0.51+0.47=
8.8+0.3=6.5+7.2=51.9+4=0.56+0.17=
1.6+0.8=7.8-3.8=6.2+5.1=0.95+0.36=
5.4+0.3=2.3+4.9=58.9-3=0.97+0.44=
二、笔算。
3.98-0.04=25.83-8.24=7.49-2.06=75.3+31.4=
8.67-1.5=58.68-2.85=5.79+0.46=90.29-5.43=
6.05-0.89=43.97-5.76=7.12-5.81=60.6-14.5=
8.28-2.77=16.94-3.85=2.91-0.84=16.01+4.67=
一、口算。
9-0.6=8.2+7=37.8+8=0.99-0.45=
3.6-0.4=9-4=7.9-5.1=0.98-0.36=
3.3+0.1=5.3+0.8=89.7-1=0.95+0.01=
2.2-0.4=9+4.1=8.6+5.4=0.57-0.23=
3.7-0.3=9.3+2.8=92.2-8=0.8+0.31=
二、笔算。
8.92-0.36=26.48+7.97=8.54-6.45=90.3-38.8=
8.54-1.16=73.48+8.5=6.51-0.78=75.37+6.3=
5.62+0.42=66.67+5.59=8.2+3.21=95.4+16.1=
9.32+3.88=54.18-7.16=6.82+0.67=25.4+3.76=
一、口算。
8.6-0.9=5.3+1.8=18.9+4=0.61-0.28=
7.5-0.7=7.3+0.9=8+0.3=0.5-0.07=
2.9+0.2=7.8+8=89.5+8=0.7-0.36=
4.8-0.9=6.1+3=8.2-3.5=0.5+0.3=
4.9-0.5=0.8+3.1=35.6-9=0.69-0.03=
二、笔算。
6.98+0.81=99.86-8.92=7.77+1.17=89.8+41.5=
9.52+1.92=14.82-4.12=5.73-0.69=11.38-3.61=
1.52-0.48=75.23+7.54=9.15-6.77=56.2+47.1=
8.83+6.1=66.68+8.4=3.25-0.71=18.7-2.01=
一、口算。
2.9+0.2=6.4+4=17.7-8=0.84+0.48=
8.1-0.5=6.3+0.7=8.2+0.3=0.67-0.33=
3+0.8=7.2+2=13.6-3=0.63-0.48=
7.8-0.4=8.3+3.3=8.4-0.3=0.84-0.2=
5.5-0.1=0.5+9.1=44.6-9=0.79-0.22=
二、笔算。
3.78-0.6=93.08-5.64=7.72+5.6=56.9-12.8=
9.11-3.99=10.71+6.19=5.74-0.49=31.84+2.31=
5.68+0.88=30.93-3.08=7.77-4.48=65-37.7=
8.35-1.66=58.91+7.82=4.01-0.29=44.5+9.15=
一、口算。
7.1-0.2=6.7+1.5=82.3+1=0.51-0.28=
3.5-0.4=5+3.9=7.9-5.2=0.91-0.17=
4.1+0.4=1.7+1.5=17.3+2=0.83-0.18=
6.6-0.9=8.3-4.1=7.8-3.2=0.54-0.26=
9-0.7=2+2.9=16.5-3=0.71+0.36=
二、笔算。
4.47-0.47=78.23-2.87=8.53-6.07=72.3-8.1=
8.11+5.47=91.42-4.02=3.21-0.53=64.95-7.39=
1.88-0.04=67.15+5.8=7.45-4.41=54.2-25.9=
8.08-5.29=17.18+2.69=5.52-0.15=26.92-9.25=
一、口算。
4+0.2=9+0.4=78.7+8=0.86+0.47=
7.4-0.4=7.7-2.4=8.9+3.6=0.95-0.21=
1.7-0.5=8.8+6.2=17.5-8=0.57+0.38=
8.7+0.8=5.8-0.2=7.8-0.6=0.89-0.42=
4.9-0.9=2.1+8=10.1+7=0.92-0.2=
二、笔算。
7.51+0.01=57.05+1.06=7.21-6.68=70.2-4.6=
9.21-1.98=35.06+7.47=3.63-0.81=50.47+5.84=
6.64-0.08=46.29+3.98=9.49+1.01=75.4-22.1=
7.1-4.74=11.16+5.04=8.75-0.6=84.55+3.03=
一、口算。
8.3-0.6=5.7+6.7=27.9+1=0.76+0.47=
1.5+0.9=7.8+4.6=6.9-3.7=0.6-0.43=
7+0.2=5.4+5.6=52.1+1=0.57+0.33=
2.3+0.4=8.3-2.8=6.9+4.1=0.81+0.22=
7.6-0.7=2.9+8.1=19.7+6=0.73+0.16=
二、笔算。
4.09-0.32=90.29-8.33=9.51-1.13=72.1+5.8=
7.57+5.13=49.71+6.19=9.2+0.5=52.41+6.37=
5.85+0.17=72.74+6.99=8.41+2.88=76.3-21.1=
9.37-2.91=10.63-4.45=1.22-0.66=13.66-6.18=
一、口算。
1.7+0.7=7.6+7.7=13.9-9=0.75+0.35=
3.9+0.3=6.8-4.7=8.8+5.2=0.51-0.33=
1.1+0.7=8.1+9.2=86.8+3=0.56-0.33=
7.5+0.1=8.1+3.7=9.4-0.2=0.56+0.43=
9-0.6=3.4+0.1=69.7+2=0.94-0.47=
二、笔算。
8.79+0.57=79.73-1.68=9.39+1.14=65.9+7.1=
9.32-1.74=79.4-4.52=4.18+0.63=68.07+1.7=
3.11+0.05=85.99+1.5=9.48+4.8=79.3+41.5=
8.47-5.11=74.72-3.72=2.74-0.74=30.3-4.97=
一、口算。
5-0.6=9.9+7.6=73.1-9=0.71+0.3=
7.6+0.4=5.2+2.2=9.2+1=0.97+0.25=
8.7+0.2=6.3+1.1=38.6+7=0.92-0.01=
3.6+0.2=7.2+4.2=6+1.7=0.93+0.16=
1.4-0.4=4.3+9.3=84.3-2=0.63-0.37=
二、笔算。
5.04+0.19=49.06+8.7=8.43-2.16=70.2-42=
8.4+3.81=89.26+4.76=2.35+0.41=69.61+5.19=
3.11-0.9=16.86+7.18=8.16+3.43=79.9+46.5=
7.65+5.07=86.35+4.47=3.43+0.48=78.18-8.73=
一、口算。
5.9-0.2=6.5+0.1=77.8-4=0.9+0.25=
3.3+0.5=7.5-0.9=7.2+4.9=0.53+0.41=
7.4-0.3=2.6+5.3=99.7+4=0.95-0.45=
8.2-0.6=5.5-4.3=9.9-2.3=0.79-0.1=
7.9+0.8=7.7+7.7=86.6+3=0.75-0.08=
二、笔算。
6-0.31=56.18-2.24=9.76-6.19=51.9+47.6=
8.47+4.77=30.95+5.19=9.88+0.38=28.15-9.3=
2.77-0.4=85.65-2.82=9.11-3.82=78.1+27.5=
8.44-2.24=58.72+6.43=2.54+0.45=65.38-1.5=
一、口算。
7.2+0.5=8.2+5.4=97.5+9=0.93-0.26=
7.6-0.7=6.5+4.6=9.5+4.6=0.73+0.01=
6.1-0.1=7.8+8=68.1+1=0.99+0.3=
3.9+0.7=5+4.1=9.5+3.9=0.73+0.03=
3.8-0.6=7.7+9.2=19.9-2=0.5+0.41=
二、笔算。
9.79+0.94=48.88-9.95=7.93+2.41=55.3+37.8=
7.45+4.65=81.47-8.43=5.47+0.35=46.95+1.27=
7.18-0.41=14.1-2.82=9.9-6.7=90.7-24.3=
7.75+3.68=53.44+7.44=1.55+0.53=44.34-8.6=
一、口算。
4.4+0.5=8.4+9.9=79.7+3=0.73+0.22=
6-0.8=7.1-4.7=8.9+0.5=0.7-0.47=
7.4-0.4=7.9+6.8=26.5+9=0.6+0.44=
6.3+0.3=5.5+0.6=9-4.5=0.63+0.05=
5.9-0.8=7.6+0.7=81.2+9=0.63+0.3=
二、笔算。
8.34-0.87=28.3+1.5=7.77+3.91=53.5+16.2=
9.17-1.85=52.46-7.79=5.89-0.46=61.44-7.53=
2.09-0.2=29.86-4.78=7.65-1.47=65.5-39.9=
9.56+2.66=38.62+5.2=4.32+0.63=50.02+2.93=
一、口算。
8.1-0.1=7.8+4.8=34.6-7=0.62+0.2=
4.1-0.2=9.1-0.6=6.6+5=0.73+0.44=
7.2-0.4=8.2+2.5=25.6-1=0.92+0.42=
1.7-0.3=9.3-3.5=7.7+3.2=0.88-0.37=
4.7-0.9=8.9+5.1=12.4-9=0.91+0.02=
二、笔算。
2.16-0.81=74.91+8.67=7.63-3.58=94.2-26.6=
8.23+3.2=12.09+4.75=8.41-0.83=61.53-8.76=
9.34-0.35=29.34+7.23=7.59+1.09=56.1+4=
9.14+2.58=91.88+2.3=6.54+0.93=16.27+3.28=
一、口算。
7.9-0.6=3.3+6.6=46.3-1=0.5-0.01=
6.4-0.5=5.9-4=6.3+3.5=0.59-0.29=
4-0.9=1.3+3.4=84.1+4=0.9+0.17=
6.3-0.9=7.1+2=9.9+5.9=0.59+0.19=
1.8-0.7=9.8+4.3=31.1-7=0.91+0.32=
二、笔算。
5.23+0.32=60.9-2.56=8.26-5.67=53.1-4.5=
8.76-1.93=14.49-9.43=8.87+0.23=58.88-7.18=
4.6+0.95=17.29-4.89=9.66+6.09=98.1+26.3=
9.56+1.62=72.64+7.39=2.96-0.16=31.28-9.77=
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