四年级数学下册小数加减法练习题精选55.docx
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四年级数学下册小数加减法练习题精选55.docx
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四年级数学下册小数加减法练习题精选55
一、口算。
5.4-0.2=0.6+6.2=48.5-8=0.5+0.07=
6.2+0.3=8.3+4.4=8.8-0.7=0.69-0.49=
7.5+0.2=8.2+2.5=35.7+7=0.65-0.38=
3.8-0.4=5.3-4.7=9.7-2.2=0.74+0.41=
1.7-0.7=7.5+7=14.6-8=0.92+0.26=
二、笔算。
5.13+0.89=19.98-7.24=7.39+2.71=92.9-36.4=
9.8+6.78=25.19-8.21=9.14-0.6=96.02+9.72=
3.89+0.49=84.17-9.19=7.68+3.22=95.7-42.7=
9.16-3.63=39.13-6.37=2.02+0.05=83.12-1.08=
一、口算。
7.4-0.7=0.8+3.9=22.1+8=0.82+0.05=
4.9+0.5=8.4+4.4=9.5-0.8=0.84-0.12=
3.1-0.3=4.7+0.3=87.3+8=0.77-0.06=
6.1-0.3=6.3+0.4=6+4.4=0.83-0.43=
8.4-0.9=3.3+5.6=99.9-4=0.94-0.4=
二、笔算。
7.65+0.44=90.72-3.43=8.58-3.51=84.3-31=
8.03+3.23=77.39-5.1=9.1-0.13=25.59-8.61=
8.53+0.86=83.59-1.54=8.39+5.45=70.3-1.4=
8.86+6.29=58.15+5.45=3.49-0.85=83.86-1.54=
一、口算。
5-0.9=5.2+3.1=44.2+2=0.65+0.28=
3.7-0.4=9.9-0.7=6.5-4.8=0.61-0.16=
3.5-0.4=2.9+5.6=34.6-8=0.97-0.23=
6.6+0.6=7.9-2.9=8.7-5.4=0.64-0.27=
1.8-0.5=1.2+5.5=69.8-5=0.65-0.12=
二、笔算。
9.53-0.51=60.9-9.5=7+5.1=77.2+46.7=
7.24-2.73=68.86+3.56=9.95+0.95=57.32-4.97=
8.45-0.13=24.53-4.32=9.62-4.99=57.4-36.4=
9.43-1.54=90.44+3.27=4.1-0.17=39.32-2.31=
一、口算。
5.7-0.6=7.5+0.9=99.8+2=0.97-0.26=
5.8-0.9=5.4-4=7.5+0.6=0.86-0.33=
6.8+0.3=4+2.8=93.7+2=0.94-0.42=
1.8-0.1=6.8+4.9=7.8+5.3=0.56-0.23=
6.4+0.6=5.5+8.2=43.1-7=0.89-0.29=
二、笔算。
3.09-0.37=71.21-8.06=8.07-2.1=67.3-20.3=
7.04+4.1=85.9+8.29=5.08+0.35=83-6.46=
8.99+0.53=99.47+9.57=9.67-2.92=97.4-28.3=
7.61+6.87=22.17+7.47=4.68-0.62=95.01+3.12=
一、口算。
8.3-0.3=1.6+0.8=53.2+4=0.62-0.22=
4.1+0.7=8.2-1.9=8.9-1.1=0.95-0.33=
5.1-0.4=9.2+4.9=19.1-8=0.53+0.01=
9+0.8=6.1+0.2=6.8-5.3=0.68-0.49=
1.3-0.8=8.3+5.2=73.6-4=0.52+0.03=
二、笔算。
6.97-0.86=26.05+6.12=7.47-3.57=63.6-9.8=
7.62+6.33=18.15+7.75=7.71+0.26=60.57+1.92=
4.08-0.12=27.35+4.45=9.31-4.87=65.9+3=
7.04-1.48=55.68+3.26=1.18+0.55=11.78-6.88=
一、口算。
3.1+0.3=1+2.3=17.3+4=0.96+0.2=
4.9+0.4=6.3-1.4=8.7-3.8=0.99-0.02=
9+0.7=9.1+9.8=28.2+1=0.51-0.23=
2.7-0.9=7.5-4.3=9.1+1.5=0.95-0.49=
6.9+0.5=7.7+9.9=88.7-4=0.54+0.41=
二、笔算。
7.67-0.12=97.37-5.03=8.6+2.2=60.3-1.1=
9.43-1.79=52.86-7.09=1.87+0.96=41.15+3.37=
6.9+0.47=30.29+4.03=9.47-2.47=86.3+26.3=
7.4+3.82=87.67+6.94=9.35-0.84=83.1+1.38=
一、口算。
1.5-0.2=6.4+6.7=67.5-1=0.9-0.21=
6.9-0.3=7-2=9.8-1.8=0.9-0.1=
5+0.3=7.5+9.8=42.2+1=0.52+0.05=
6.4-0.8=8.6+1.1=8.4+2.9=0.85+0.34=
6.7-0.4=8.6+7.8=78.2+6=0.82-0.32=
二、笔算。
7.52-0.68=52.7+8.53=7.97+5.25=58.3+26=
7.39-1.69=20.08+3.61=8.68+0.44=86.65-4.65=
4.24+0.84=77.6-6.26=8.87-6.88=53.4+30.7=
9.27+2.95=91.11-6.15=4.15-0.84=72.11-7.12=
一、口算。
8.1-0.5=1.1+7.9=48.8+1=0.7+0.05=
6.2+0.6=8.6-4.4=7.3+0.5=0.66+0.27=
4.8-0.2=9.4+5.2=78.6-3=0.84-0.2=
2.5-0.7=6.1+4=9.2-4=0.86-0.14=
1.5-0.3=7.2+6.4=66.8+8=0.71-0.07=
二、笔算。
7.29+0.22=90.8-9.88=8.83+6.38=94.3+28.1=
9.85+3.84=80.74-5.17=2.8-0.99=93.81-7.78=
3.33+0.9=75.8+3.06=7.78-3.09=80.3+20=
8.32-6.76=38.51-7.49=9.13-0.42=18.81+8.47=
一、口算。
4-0.1=4.3+2.2=63.8-1=0.97-0.2=
1.5+0.7=5-0.2=6.1-0.5=0.96-0.38=
5.9+0.1=3.3+3.2=85.2+1=0.71+0.32=
3.4+0.6=8.7-0.2=7.9-4.9=0.84-0.1=
2.7-0.7=4.8+5=61.3-7=0.9+0.25=
二、笔算。
1.42+0.49=47.16+5.36=9.76+6.04=63.2+48.9=
8.76-2.99=91.18-3.05=4.06+0.54=61.96-3.43=
4.66-0.84=72.15-1.85=8.1-6.29=75.7-15.1=
8.83-3.7=72.42-5.87=4.11-0.98=44.53-4.69=
一、口算。
4.3+0.8=6.8+5.9=41.3+7=0.53+0.03=
8.6-0.6=5.6+4.6=6.1-0.6=0.58+0.14=
5+0.2=9.6+9.5=75.8-8=0.8+0.45=
5.4-0.3=9.9-3.9=7.8+4.5=0.69-0.31=
6.1+0.9=3.1+4.8=36.5-1=0.82-0.45=
二、笔算。
2.52+0.3=75.74-5.73=9.87-6.39=73.8+27.3=
9.63+5.29=61.96-9.4=8.19-0.74=22.32+9.26=
3.87+0.14=26.81-7.28=8.95-2.29=89.1+22.6=
9.88+6.62=73.33+5.38=6.4+0.03=87.2-7.51=
一、口算。
7.5+0.5=8.1+6.4=16.7+7=0.85+0.18=
4.9+0.7=5.8+0.2=9.9+2.9=0.72-0.35=
1.7+0.1=6.8+1.4=35.9-5=0.7+0.34=
8.5-0.2=8.9-4.1=7.7+2.8=0.93+0.2=
8.3+0.4=5.4+9.3=57.2-3=0.72-0.44=
二、笔算。
1.33-0.32=97.31+4.3=8.65-3.91=88.6+19.3=
9.71-4.65=41.84+6.63=3.7-0.19=24.19-9.46=
8.8-0.89=10.84+8.78=9.24-2.18=63.3+20=
9.43+3.63=66.72-1.69=7.76+0.89=98.2+9.74=
一、口算。
6.4+0.2=9.1+2=46.1+4=0.89-0.03=
9-0.1=7.4-3.5=8.4+0.7=0.57-0.18=
5.7-0.1=3.8+6.6=22.9+4=0.53-0.39=
3.9+0.1=8.8+2.8=7.8+3.2=0.86+0.44=
8.8-0.9=1.5+5.4=17.2+7=0.78+0.29=
二、笔算。
2.51+0.69=16.64-5.47=9.1+1.42=92.9-33.8=
9.38+6.55=74.93+2.93=5.63-0.49=64.11-8.91=
3.71+0.82=30.79-4.29=9.52-5.34=78.3-34.1=
9.16-4.26=34.23-1.54=5.99+0.66=62.96-8.14=
一、口算。
6.8-0.8=9.1+9.4=92.6-4=0.83-0.23=
6.9+0.5=9.3-1.9=7-4.4=0.95+0.48=
8.2-0.6=1.2+6.3=25.9+6=0.69+0.19=
4.8+0.8=5.9-4.2=9.5-4.6=0.91-0.08=
7.2+0.9=6.3+2.2=42.6+6=0.92+0.41=
二、笔算。
5.82-0.29=87.08+4.95=9.8+4.27=72.5+46.8=
8.48+4.04=69.49+8.98=7.75-0.86=57.78-7.89=
2.36-0.09=60.45-6.58=7.01+1.31=65.2+16.7=
9.07-4.95=65.32+3.5=2.6+0.76=64.99-9.74=
一、口算。
3.2-0.8=6.6+7.9=21.9-8=0.89+0.16=
7.5-0.2=6.3-2.7=8+0.6=0.68+0.44=
8.8+0.4=0.2+7.7=34.7-2=0.76+0.34=
3.7+0.6=9.7+4.4=6.1-1.9=0.87+0.14=
8.5+0.3=9.9+1.7=19.7+1=0.85+0.41=
二、笔算。
5.1-0.62=17.16+5.69=8.67-6.99=67.1-35.6=
7.95+1.63=72.24-3.81=4.26-0.31=96.28+6.53=
6.26+0.02=96.11-8.31=7.64+6.1=63.1+20.9=
7.21-5.86=60.21+6.82=3.57-0.6=45.15+1.31=
一、口算。
1.6-0.6=9.7+8.6=41.9+9=0.55+0.44=
6.7+0.8=9+3.5=9.3+2.7=0.52+0.29=
2.6-0.8=6+6.3=42.6+5=0.87-0.08=
8.5+0.9=8-2.3=6.7+2.1=0.84-0.4=
1.7-0.2=0.7+8.6=81.8+6=0.84+0.19=
二、笔算。
3.61+0.02=16.85+2.22=9.41+4.22=63.5+33.3=
8.11-1.3=91.58+1.98=8.13+0.56=86.89-8.06=
2.75+0.18=77.12-9.33=8.15-2.81=80.9-43.9=
7.95+2.29=30.46-1.96=9.72-0.06=52.88-2.51=
一、口算。
5.6+0.2=1.3+5.2=64.6-2=0.81+0.32=
5.7+0.8=9.6+0.1=9.3+1.7=0.94-0.46=
7.2-0.4=7.5+2.8=22.4+5=0.88-0.45=
2.8-0.8=5.8+1.4=8.5+5.9=0.52-0.07=
6.8+0.8=2.5+2.8=26.3+9=0.89+0.25=
二、笔算。
5.85+0.55=37.72-9.48=8.48-4.57=78.5-14.8=
7.02-5.32=81.29-9.17=8.07+0.56=50.11-4.45=
5.76-0.92=81.07+6.63=9.23+3.89=72.2+45.4=
8.94+5.12=59.43+2.18=3.95-0.89=42.88+1.78=
一、口算。
1.2-0.9=9.4+0.7=41.4-6=0.52+0.26=
8-0.2=8-4.1=9.5-4.1=0.61-0.41=
6.4-0.3=8.7+7.1=45.1-5=0.7+0.08=
1+0.2=9.4-2.1=9-4.3=0.83-0.15=
7.9+0.5=0.5+9.6=70.5-5=0.71+0.03=
二、笔算。
3+0.22=29.02+6.69=8.56+6.03=97.5-5=
9.02-1.81=45.39-5.17=9.75-0.63=83.86-5.08=
9.51-0.19=83.63-1.7=8.51-2.69=51+20.5=
8.81-6.36=28.86-7.33=2.61-0.96=91.22-2.74=
一、口算。
4-0.4=5.5+8.2=79.1+7=0.84+0.17=
7.5-0.4=6+3.4=8.2+2.8=0.94+0.42=
8.7+0.4=9.2+9.3=17.1-2=0.89-0.24=
5.5+0.5=8.2+4.7=9.9-3=0.68+0.44=
2.1-0.2=2.4+6.1=13.4-4=0.55-0.37=
二、笔算。
4.73-0.6=10.88+4.69=7.66-5.05=74.5+12.4=
7.22-3.86=53.12-4.2=9.02+0.81=98.03-5.59=
2.73-0.6=35.84+1.89=9.46+6.04=68.2-22=
9.1-1.12=81.31-3.65=4.46+0.76=54.8+8.72=
一、口算。
8.8+0.5=0.3+1.9=56.2+9=0.6+0.46=
5.9-0.5=5.3-4.9=6.9-1.2=0.83-0.25=
3+0.4=4.2+8.9=32.7+8=0.65+0.16=
3-0.4=5.5-3.2=8.8+3.6=0.97-0.02=
6.8+0.4=1.2+6.9=77.1-2=0.8+0.43=
二、笔算。
7.94-0.53=56.02+9.6=8.27+4.22=90.6+39.3=
9.09-6.48=77.44-8.13=7.76-0.87=43.64-5.97=
3.35+0.67=70.71-1.85=9.52-5.59=54.5-4.4=
8.31-5.7=91-1.97=6.43-0.59=27.01+2.69=
一、口算。
3.2+0.7=9.2+7.5=98.4+4=0.59+0.09=
6.1-0.8=7.7+0.3=8.3-4.1=0.83-0.01=
2+0.8=2.2+0.5=81.8+6=0.61-0.02=
3.9+0.9=5.6+4.7=7.7+0.8=0.82-0.14=
4+0.5=8.5+8.9=38.1+6=0.94-0.13=
二、笔算。
5.58+0.78=44.31-2.5=7.41-1.74=73.7-7.6=
7.11-3.68=98.38-1.23=2.47+0.47=77.42-5.63=
1.99+0.99=21.76-3.81=7.64+5.13=62.6+15.2=
9.4+4.83=45.56-2.2=6.91+0.96=56.85-5.03=
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