四年级数学下册小数加减法练习题精选117.docx
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四年级数学下册小数加减法练习题精选117.docx
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四年级数学下册小数加减法练习题精选117
一、口算。
2.4+0.2=3.9+2.7=27.9+1=0.62+0.03=
1.3-0.7=7-3.2=7.8+3.7=0.82+0.35=
5.5-0.5=2.7+1.3=31.1+1=0.92-0.02=
6.7-0.5=5.4-3.2=7.4+4.3=0.56+0.13=
6.7-0.8=0.1+3.1=76.2+1=0.93+0.36=
二、笔算。
9.07-0.22=21.34-2.08=8.39+2.19=96.2+9.9=
7.51-5.05=48.43+7.95=5.82-0.01=15.93-1.13=
3.63-0.25=61.33-5.9=9.91-2.72=55.4-23.5=
7.84-3.1=98.87+8.05=6.43-0.07=55.74+6.04=
一、口算。
7-0.1=5+8.4=93.1+2=0.83+0.16=
3.5+0.2=9.1+4.4=8.1+2.3=0.62+0.49=
1.8-0.8=1.3+3.7=31.1+1=0.55+0.06=
6.2+0.6=5.9+0.1=8.9-5.4=0.69-0.09=
2.3+0.8=2+3.3=72.5+9=0.57+0.29=
二、笔算。
6.53+0.55=85.65-1.91=9.51+5.55=92.6-29.5=
9.53+1.08=19.49-8.19=9.08+0.26=18.47+1.75=
2.22-0.9=41.78+8.5=7.51-6.25=99.1-32.5=
8.56-4.6=48.75+5.08=9.81+0.64=70.29+1.57=
一、口算。
1.5-0.3=6.9+0.9=77.4+1=0.76+0.26=
2.1-0.5=7.4+2=9+3=0.54-0.07=
3.6-0.2=6.4+9.1=59.4-8=0.55+0.26=
2.6-0.5=9.1+1.9=6.1+1=0.61+0.05=
4.3+0.9=8.7+2.4=19.9+3=0.98-0.11=
二、笔算。
4.61+0.52=87.39+3.55=7.39-3.45=74.7-29.8=
9.71+2.45=65.27+5.41=8.55+0.8=80.17+3.46=
8.61+0.83=17.37+5.4=9.45+4=84.1+39.1=
7.33-3.64=78.82-7.8=2.88+0.06=72.13+1.1=
一、口算。
2-0.8=7.4+9.2=79.7-1=0.99-0.13=
3.3-0.8=6.5-1.9=9.1+0.5=0.92-0.47=
2+0.5=5.8+7.2=46.4+2=0.75+0.13=
2.1+0.9=8.1-4.1=9.4+5.2=0.77+0.44=
7.4+0.9=2.6+7.1=32.3+2=0.59+0.39=
二、笔算。
6.41+0.1=81-9.25=7.08+6.81=88.2+16.3=
9.57+1.51=58.03-9.18=4.09-0.92=42.88+3.32=
7.47-0.26=16.58+2.83=9.66+2.57=60.8+40.8=
9.69+1.09=51.76-2.96=1.62+0.87=36.38+3.97=
一、口算。
6.9+0.5=9.6+6.1=49.6-6=0.68+0.18=
6.6+0.8=5.3+2.6=8.1-5.2=0.83+0.14=
8.6+0.8=0.8+9.6=75.3-4=0.73-0.37=
5.7+0.5=8.1+4.4=7.5-4.8=0.67-0.39=
6.9-0.8=4.2+1.7=47.7+3=0.66+0.08=
二、笔算。
3.55-0.14=19.42-1.56=8.95+1.71=76.8-38.8=
7.16-6.71=55.72-3.51=4.93+0.89=19.81+8.65=
3.61-0.83=47.15+6.14=7.81+3.55=68.6-27.9=
8.88-3.78=89.21-7.49=1.1+0.51=41.4+6.31=
一、口算。
1.7-0.2=5.8+8.4=55.2+4=0.89-0.3=
6.9-0.5=5.8+3.2=9.9+1.2=0.7-0.37=
1.6-0.9=4.1+5.4=61.2-8=0.5+0.48=
5.3+0.9=7.9-4.2=6.9+2.5=0.63-0.46=
7.5+0.1=4.1+6.8=41.4+6=0.94-0.39=
二、笔算。
9.99-0.82=15.26-1.48=9.09+1.66=98.6-38.4=
7.78+1.05=59.88+2.41=8.23-0.28=24.36+8=
4.39+0.11=17.07+3.14=8.79-6.04=90.6-20.2=
7.8+6.26=48.17-6.3=8.3+0.13=77.22-3.17=
一、口算。
7.5+0.5=8.2+9.4=88.8+3=0.53-0.05=
3.8-0.4=6.3+1.1=9.1-3.7=0.73-0.47=
8.2-0.4=7.7+2.6=13.9-9=0.6-0.2=
3.4+0.4=6.2+2.4=7.7+2.7=0.67+0.22=
6.9-0.8=0.4+4.1=28.3-1=0.98+0.03=
二、笔算。
6.88-0.6=99.61-5.12=8.74+2.51=66.2+17=
8.94+3.19=79.73-7.39=9.57+0.05=84.88+8.47=
9.84+0.32=56.64+2.23=8.96+4.53=88+19.3=
8.97+2.21=80.58-5.89=8.74+0.83=47.3-3.57=
一、口算。
4.8+0.3=8.4+5.1=10.1-1=0.75+0.17=
6.9-0.5=7.1+4.8=9.2-2.1=0.71-0.32=
2.9+0.4=1.5+3.8=52.8+1=0.78+0.24=
4.9-0.1=5.1+0.1=8.1+5=0.66+0.45=
1.5-0.3=6.3+7.7=81.5-7=0.71+0.18=
二、笔算。
5.72-0.11=71.14-2.57=9.86-6.06=65.6-27.4=
7.4-5.72=63.07+1.46=6.39+0.45=26.42+8.32=
5.44+0.91=85.25-1.99=8.34+3.44=87.7+11.2=
7.82+3.64=55.84-2.39=5.03-0.16=99.01-7.61=
一、口算。
5.8+0.7=9.8+3.9=83.5-5=0.63+0.46=
5.1-0.4=8.6+0.8=7.7-2.3=0.58-0.13=
6.4-0.2=2.3+8.5=46.2-3=0.89+0.18=
4.2-0.8=8.2-3.8=8.7+2.6=0.98+0.27=
7+0.8=3.6+5=76.4-8=0.93+0.03=
二、笔算。
1.16+0.57=11.51-9.89=9.26-3.62=88.4+31.3=
7.52-6.88=64.46-8.64=4.39+0.88=80.98+9.84=
1.03-0.87=30.01+9.51=7.19-1.37=58.7+1.2=
7.67+6.59=63.41-3.19=9.16-0.22=54.91+2.77=
一、口算。
7.6-0.4=7.5+6.3=62.6-4=0.7+0.41=
4.3-0.5=9.5-4.5=7.4-5.6=0.85-0.44=
6.2-0.3=8.9+6.4=37.8-5=0.52-0.26=
5.6-0.7=6.6-2.7=8.6-0.8=0.97+0.16=
8.7+0.2=9.7+4.9=60.4-3=0.95-0.08=
二、笔算。
9.29+0.3=69.98+8.47=8.32+2.23=79.4-35.1=
7.34-3.83=23.75-7.4=5.38+0.22=25.45-7.07=
2.7-0.43=91.57+3.42=7.55-6.76=83+33.6=
7.61+4.4=11.92-9.87=4.56-0.49=50.11+6.88=
一、口算。
1.2-0.5=0.2+5.3=49.7+6=0.59-0.37=
8.7+0.2=6.8+3=8.1-5.6=0.98-0.49=
1.9-0.1=3.4+0.8=43.1+4=0.79+0.46=
3.3-0.3=9.8+3.6=8.6+4.5=0.56-0.11=
4.7+0.2=4.2+0.1=87.5+5=0.59-0.26=
二、笔算。
3.17+0.9=59.73-3.57=7.62-6.11=71.9+14.6=
8.39-4.79=81-1.44=8.45+0.86=59.11-3.95=
8.27+0.31=60.78+9.28=7.55+1.15=50.1-20.7=
7.59-5.19=35.16+3.72=1.3+0.79=70.16+7.84=
一、口算。
7.5-0.7=4.1+5.7=98.9+9=0.61+0.3=
7.5-0.2=8.4+3.9=6.3-1.2=0.66-0.24=
7.6-0.3=7.4+2.5=99.9+4=0.92+0.29=
3.9-0.8=9.2+3.2=7.3-3.2=0.79-0.31=
3.5-0.3=7.4+9.7=41.9-4=0.59-0.22=
二、笔算。
4.91-0.29=88.33-1.3=9.43+6.99=76.2+13.9=
9.87-5.99=61.38+3.12=3.14+0.18=92.65+4.57=
1.16+0.52=18.7-6.97=8.84+4.81=70.4-49.8=
7.12+2.68=86.82-8.52=3.57+0.75=15.99+6.37=
一、口算。
3.6+0.3=3.8+0.4=79.1+5=0.6+0.01=
7.4+0.7=7.6+2.1=6.2-3.9=0.83+0.37=
3.9+0.1=3+0.8=73.6-2=0.56-0.39=
7.9-0.1=9.8-4.9=9.3+2.8=0.83-0.45=
6.9-0.7=5.3+7=48.7+6=0.76-0.33=
二、笔算。
8.79-0.88=52.54-2.03=7.43-2.97=54.8-15.3=
7.93+4.11=75.37-5.06=7.48+0.2=79.57-2.96=
8.38+0.5=45.22+5.58=9-2.78=62.7-39.5=
8.5-5.34=38.37+6.45=5.93-0.41=18.23-8.95=
一、口算。
4.2-0.7=5.7+7.8=85.9-9=0.79-0.42=
8.5+0.4=8.7+4.4=8.3+2.1=0.95+0.31=
5.4+0.6=5.3+6.2=33.5-2=0.54+0.45=
4.7-0.8=7.8+2.9=7.2-0.7=0.84-0.05=
6.5-0.3=9.8+0.9=51.6+9=0.96-0.07=
二、笔算。
6.75+0.1=12.71-6.62=9.62+5.06=50.3-8.7=
7.52-2.33=15.53-7.47=8.83+0.47=30.97+1.26=
1.39-0.1=48.02-8.99=9.44+1.59=89.7+35.3=
9.54-2.39=20.48-1.52=4.96+0.28=34.05+1.9=
一、口算。
3.9+0.3=4+4.2=28.3-3=0.85+0.17=
3.6+0.7=8.7+0.6=8.3+0.3=0.51+0.25=
1.7-0.1=6.4+8.3=68.2+7=0.82-0.32=
6.4-0.2=7.1-0.5=6.5-1=0.64-0.23=
6.9+0.4=3.9+8.1=82.3+2=0.59-0.12=
二、笔算。
7.16-0.32=72.69-8.88=9.35+3.54=93.3+6.9=
9.59+2.87=96.89-3.16=9.55-0.1=86.91+3.29=
9.41-0.58=45.07-7.2=7.71-1.93=83-10.3=
7.5-2.15=84.37+9.24=3.75-0.31=47.93-3.03=
一、口算。
5.3-0.5=6.3+5=51.4-2=0.75+0.25=
4.5+0.1=7.9-1=7.1+1.5=0.66-0.03=
3.2-0.2=9.7+8.7=11.5+4=0.63-0.14=
5+0.8=9.9+2.6=8.5-4.4=0.53+0.34=
3.9-0.7=2.4+3=15.9-2=0.77-0.46=
二、笔算。
3.35-0.53=83.53+7.65=7.62+4.3=53.4-47.6=
7.17-5.62=98.45-3.48=9.89-0.79=24.84-9.66=
3.57+0.02=34.81+6.64=9.41+5.41=56.1-13.5=
9.58-3.28=11.77+7.88=3.7-0.39=37.15-5.68=
一、口算。
5.8+0.6=7.5+9.2=80.3-4=0.97-0.32=
5.3-0.7=6.1+1.8=7.2+5.3=0.89+0.31=
2.1-0.2=3.8+5.7=87.5+2=0.53-0.48=
8.3-0.9=8.5-3.2=6.4-1.7=0.66-0.35=
2.5-0.4=4.6+3.2=39.6+1=0.6-0.43=
二、笔算。
2.23-0.56=75.66-2.35=7.92-3.23=91+34=
7.65+2.69=89.22+9.06=1+0.37=45.43+1.33=
7.05+0.67=15.01-1.56=8.06+6.25=74-45.6=
9.7-6.29=86.38-2.6=7.27-0.93=71.36-5.51=
一、口算。
6.3-0.2=6.9+0.5=51.6-6=0.73+0.2=
1.9+0.2=6.4-0.6=7.4-2=0.95-0.15=
3.3+0.1=8.3+9.5=30.6-1=0.68-0.4=
3+0.8=7.7+4.5=6-3.8=0.65+0.19=
4.1+0.1=1.1+4.7=26.8-4=0.85-0.02=
二、笔算。
9.15-0.98=96.03-4.67=9.39+3.85=96.7+13.2=
7.79+6.26=13.87+4.9=3.91-0.01=62.59+2.89=
5.04-0.38=99.01-5.23=9.93-6.44=97.1+24.8=
7.24+1.18=58.54+2.46=1.33+0.07=70.19+4.83=
一、口算。
3.4+0.9=4.5+8.2=12.7-8=0.82+0.38=
8.1-0.5=9.8+3.7=9.4+0.2=0.61+0.11=
7.5+0.6=5.8+9.1=45.6-8=0.67-0.09=
1.8-0.7=7.9+1.9=7.1+4.3=0.61-0.22=
1.3+0.4=7.7+1.7=51.4-2=0.8-0.17=
二、笔算。
5.77-0.36=76.04-7.74=9.83+2.7=65.4-9.7=
8.93-2.18=33.74+3.42=9.11-0.8=30.68+2.72=
3.93+0.03=77.01-8.15=7.27-6.2=51.4-5.4=
7.9+1.33=35.77+4.3=7.01-0.57=22.42+2.72=
一、口算。
6.9-0.4=9.9+8.9=57.7+2=0.55-0.41=
7.7-0.3=5.5-1.6=8.4-4.3=0.71-0.49=
4.6-0.4=0.8+2.2=75.5+2=0.8+0.04=
4.6-0.1=5-2.1=9.1-4.7=0.97+0.41=
4+0.5=3+8.7=21.4+7=0.61+0.46=
二、笔算。
9.69-0.12=20.43-9.79=9.15+6.23=59.7+32.6=
8.45+6.06=16.89-3.82=2.25+0.27=11+7.12=
1.09+0.15=47.6+7.73=7.89+3.16=65+2=
7.2-3.6=16.83-6.91=4.15-0.86=83+1.
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