四年级数学下册小数加减法练习题精选9.docx
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四年级数学下册小数加减法练习题精选9.docx
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四年级数学下册小数加减法练习题精选9
一、口算。
8-0.4=1.9+8.8=15.4-3=0.99+0.32=
7.5-0.9=6.8+3=7.6-0.8=0.71-0.17=
4.6-0.8=6.7+8.9=76.5+9=0.88+0.06=
8.4+0.5=5.7+1.7=7.4+3.1=0.94-0.29=
6.6-0.1=0.1+3.2=31.9-1=0.74+0.05=
二、笔算。
3.13+0.75=96.57-7.57=9.92+2.28=87.3-18.6=
7.44+3.72=47.1-9.07=8.38+0.75=50.16-1.08=
5.08-0.12=16.2+4.63=9.19+1.11=60.3+15.4=
8.66+1.81=62.9+4.62=5.79-0.91=39.95+9.72=
一、口算。
5.7+0.5=8.5+2=28.1-2=0.64-0.19=
6.2+0.6=5.7-1.9=9.4-3.9=0.73+0.33=
7.1-0.7=2.4+8=78.9+3=0.66+0.36=
3.2+0.1=7.4-4.5=9.2+4.9=0.72-0.31=
8.9+0.7=0.9+2=96.6+7=0.64+0.25=
二、笔算。
1.7-0.08=84.32-3.76=7.06-4.86=72.3+30.3=
8.46+2.19=74.1-8.83=1.38-0.12=90.52+1.27=
1.34+0.22=88.1+6.8=9.08+1.75=63.2+1.2=
8.52+5.2=58.79-9.18=6.71+0.04=27.31+7.97=
一、口算。
7.3-0.9=1.6+4.8=76.7-3=0.6+0.28=
8.9+0.1=8.7+0.7=8.3+2.9=0.78+0.4=
7.9-0.3=8+2.2=59.6+6=0.81+0.41=
4.2-0.3=7.5+1.6=6.7+1=0.5-0.4=
2.3-0.6=4.3+6.4=74.8+6=0.76-0.17=
二、笔算。
2.16-0.73=23.61+6.32=7.5-3.81=86+6.9=
8.63-3.67=32.85+3.41=4.2-0.19=31.89+9.35=
2.92-0.42=16.2-7.72=8.14-2.31=90.4+42.9=
8.94+5.47=24.55+5.95=2.1-0.34=80.35-3.87=
一、口算。
6.7-0.1=2.5+2.8=26.6-6=0.93-0.44=
7.6+0.6=7.8-0.3=6+0.4=0.78+0.41=
5.7+0.1=7.1+6=75.2+9=0.93-0.34=
6.3-0.6=8.5-3.9=7.8-1.7=0.77-0.3=
2.1+0.7=4.4+3.1=66.5-9=0.82+0.47=
二、笔算。
1.95+0.37=63.7-7.88=9.24-2.54=77.7+15.8=
7.52-2.14=48.06+8.89=1.08+0.27=23.04+6.29=
8.71+0.84=36.67-7.22=9.72+4.75=76.1-4=
9.29-5.43=94.22-7.43=1.07+0.45=89.52-8.61=
一、口算。
2.1+0.2=7.4+0.5=81.1-7=0.72-0.01=
2.4-0.1=5.6+1.6=6.5-2.5=0.9+0.02=
5.6+0.7=7.4+0.4=43.1-6=0.97-0.08=
7.9+0.5=5.9+4.6=6.5+5.5=0.8-0.24=
8-0.8=7+0.1=88.6+7=0.51-0.34=
二、笔算。
7.78+0.63=50+7.88=9.87-1.57=93.4-1.9=
7.27+6.02=34.36-3=9.77+0.53=84.2+9.38=
1.5-0.57=99.69-5.65=7.46+5.73=71.3+43.6=
8.62-3.54=55.46+9.73=2.57+0.47=54.94-5.92=
一、口算。
4+0.4=7.2+0.6=92.6+4=0.53-0.2=
1.4+0.4=7+4.4=7.4-2.4=0.8+0.02=
6.6+0.6=3.1+1.1=34.1-1=0.73-0.09=
2.1-0.7=9-2.5=8.2-5.1=0.96+0.22=
8.7+0.3=2.2+0.4=19.8-5=0.91-0.36=
二、笔算。
3.12+0.52=70.93+2.46=8.49+2.8=70.1+38.7=
8.57+2.63=99.08-6.6=6.03+0.64=60.29-8.33=
6.14+0.7=87.07+9.97=7.71-4.53=59.1-41.5=
8.64-3.38=65.45-6.37=3.04+0.35=26-8.83=
一、口算。
3.9+0.9=4.3+3.8=59.2+1=0.68-0.4=
8.9-0.3=6.8+4.3=7.6+2.9=0.95+0.23=
8.8+0.2=9.6+8.9=45.6+9=0.87+0.36=
7.5-0.5=8.3-0.4=9-3.5=0.98-0.31=
1.5-0.4=7.7+4.8=66.6+6=0.79-0.44=
二、笔算。
3.4+0.18=40.25-8.36=9.54-6.8=84.5-13=
9.13-2.98=27.57-3.92=4.97-0.17=80.62+5.57=
7.13+0.32=40.62-6.46=7.37+6.6=70.7+33.8=
7.89-3.34=74.85-4.25=8.4+0.46=85.49+1.99=
一、口算。
4.4-0.3=1.1+7.8=95.1-5=0.75+0.27=
8.5-0.9=6.6-4.1=9.9+3.3=0.72+0.39=
3.6-0.8=2.7+0.8=11.1-2=0.75-0.21=
4-0.4=5.2+4.9=8.9-3.8=0.54-0.22=
7.8+0.3=2.3+4.5=11.4+1=0.93+0.38=
二、笔算。
3.66+0.4=85.99+5.12=7.57-4.81=76.6+12.1=
8.55-3.25=19.49-1.6=5.51-0.3=55.98+9.94=
5.13-0.15=14.19-5.28=8.42-1.16=95.5-39.6=
7.63-4.8=62.15-5.87=1.04-0.23=88.66+9.58=
一、口算。
3.9-0.4=3.8+3=31.2-7=0.61-0.35=
8.1-0.5=9.9-3.8=6.6-3.7=0.61+0.04=
8.6+0.5=9.8+7=36.4+2=0.81+0.14=
2.9+0.1=9.8+2.1=9.3+5.5=0.6-0.48=
8.6+0.1=6.2+2.7=75.7-6=0.73+0.17=
二、笔算。
4.81-0.19=76.61-4.73=7.61+3.57=53.8-7.8=
8.86+5.25=32.97+1.41=8.25-0.63=20.54+3.93=
9.64+0.49=11.93-1.77=9.61-5.78=74.7+23.1=
7.26-5.98=95.56+1.38=2.43+0.46=95.63+9.96=
一、口算。
2.6+0.4=1.9+3.1=87.6+5=0.53-0.43=
6.5-0.2=6.5-4.3=8.3-3=0.84+0.23=
1.6-0.5=4.5+7.4=34.4-6=0.59+0.22=
4.6+0.3=8.4+1.2=7.6+1.1=0.91+0.24=
1.6+0.5=0.8+0.8=70.9-4=0.83-0.03=
二、笔算。
6.25+0.37=41.81+3.58=8.51-5.61=68.9-23.6=
8.76+1.74=75.28-1.54=1.42-0.91=29.56+3.28=
6.14-0.67=77.14+1.18=7.67-2.71=96.8+15.1=
9.9-4.32=27.04-1.6=7.45-0.3=82.75+2.08=
一、口算。
8-0.7=9.7+5.3=81.8-5=0.86-0.32=
4.9-0.1=6.5+1.3=6.6+0.8=0.96+0.32=
2.8+0.9=2.6+9.4=54.4+7=0.81-0.01=
2.9+0.7=8.5-1.6=7.8-5.2=0.56-0.35=
1.1+0.7=4.5+6.4=92.9+7=0.55-0.37=
二、笔算。
9.13+0.7=87.37+8.83=8.53+5.1=54.8+28.9=
7.31+6.92=92.99-2.77=5.14-0.06=17.71-2.14=
2.6-0.6=43.54-1.12=9.2-6.73=79.2-49=
8.06+6.1=96.79-7.41=1.4+0.82=99.33-6.72=
一、口算。
2.3+0.5=2.7+4.8=97.4+5=0.55+0.34=
3-0.2=6.9-0.7=9.3+3.4=0.83+0.47=
1.3+0.1=2.5+1.5=31.3-8=0.95-0.31=
8.3-0.1=7.3+4.1=8.6-0.9=0.5+0.47=
6.5+0.7=6.8+5.1=59.1+5=0.95+0.18=
二、笔算。
8.67+0.44=10.62+5.97=9.1-6.01=65.2-21.3=
7.6-3.43=61.11+7.9=9.77+0.76=81.24+2.03=
6.99+0.96=27.07+5.56=7.17-2.21=78.9-11.2=
9.21-1.05=45.87+5.15=4.59+0.18=34.85+9.45=
一、口算。
1.2-0.5=9.5+7.4=82.4-7=0.77+0.04=
5.2-0.9=9.6+0.8=8+2.6=0.84+0.05=
6.9+0.1=0.4+9=49.7+2=0.81+0.11=
4.6+0.3=5.9+0.2=7.3-2.8=0.57+0.27=
3.3+0.2=0.9+5.1=81.3+4=0.88-0.37=
二、笔算。
3.01+0.1=53.82-5.13=8.43-1.64=90.5-41.2=
9.47+6.67=63.28+3.5=8.09-0.39=10.84-5.6=
9.36-0.02=31.68+6.38=8-1.69=71.1+12.9=
8.16-4.95=73.74-1.95=4.87+0.48=29.27+3.25=
一、口算。
7.6+0.1=4.1+4=59.2+3=0.99-0.09=
8.6-0.8=5.3+3.9=6.1-0.7=0.69+0.01=
1.4-0.6=3.5+5.5=12.1+3=0.96+0.09=
1.5-0.4=9.1+4.4=6.9-4.4=0.5-0.44=
7-0.9=3+3.5=41.3-1=0.64-0.17=
二、笔算。
2.97+0.36=43.57-9.23=8.66-6.48=50.1-46.5=
8.12+2.57=96.94+9.92=6.74-0.71=75.1+6.55=
2.37-0.34=79.09+7.23=9.4-2.1=54.4-38.5=
8.74-2.6=60.96+6.04=4.65+0.2=81.88-4.51=
一、口算。
3.1-0.2=3.9+8.2=98.7-3=0.91+0.29=
7.6-0.8=9.6-1.9=9.6+4.9=0.91-0.04=
4.2-0.4=0.2+4.3=27.4+9=0.66+0.25=
6+0.1=8.3+4.6=8.5+3.1=0.82-0.03=
5.6+0.3=0.5+7.9=74.5+9=0.64-0.15=
二、笔算。
6.11+0.99=16.56+5.6=8.86+2.07=50.2-14=
9.38+5.43=83.07+6.94=2.74+0.33=45.29-8.97=
3.05-0.19=18.8-3.51=7.39-5=75.8+15.6=
7.55+2.23=28.89+3.52=1.56+0.59=30.42+7.86=
一、口算。
6.8-0.1=7.9+2.8=11.6+6=0.75-0.25=
4.5-0.5=5.1-1.9=7.9-5.4=0.97-0.31=
5.3-0.2=7.9+5.8=43.7+4=0.88-0.44=
7.2-0.2=8.5+0.7=9.9-4=0.72-0.22=
5.1-0.5=5.9+6.4=20.5-5=0.57+0.19=
二、笔算。
2.74-0.58=59.96-7.63=8.34+2.22=57.6-32.3=
7.92-5.02=98.92+3.02=6.57+0.55=29.03+1.02=
8.62+0.18=51.25+7.14=9.02+4.56=75.8-19.1=
7.89-1.48=44.26+4.14=9.26-0.86=44.39+3.74=
一、口算。
3.6+0.5=6.6+1.1=19.2+1=0.85-0.28=
6.1-0.7=9.9+3=9.2+2.4=0.75+0.46=
6.8-0.7=8.3+1.5=82.3+1=0.9-0.42=
2.7+0.7=9.8+4=6.4+3.7=0.82+0.2=
2.4+0.3=1+5.9=69.6+9=0.92-0.04=
二、笔算。
4.56+0.3=33.5+1.12=9.66+5.6=72.4+27.9=
9.2+3.4=34.55+5.13=4.84-0.41=33.51+7=
9.74-0.46=91.66-8.97=8.39-4.52=77.1+19.5=
8.2+4.6=52.17+8.13=1.36+0.81=78.87+6.07=
一、口算。
1+0.5=0.9+2.1=66.9+9=0.6+0.03=
5.8-0.9=5.9+2.2=7.7+4.9=0.76-0.37=
7.8-0.3=7+1=16.6+5=0.94+0.03=
4.3+0.3=8.4+4.4=7.8-5.3=0.78+0.34=
5.4+0.3=9.8+1.4=87.3+8=0.94+0.45=
二、笔算。
6.73-0.38=40.27-4.65=8.91+1.73=86.2+42.3=
7.16+1.37=88.14+2.06=2.01-0.97=69.14-4.25=
3.16-0.49=52.1+4.32=8.59+4.78=91.3-8.2=
9.22+5.47=99.61+6.84=3.28+0.42=59.59-4.82=
一、口算。
6.5+0.3=1.9+5=64.4-2=0.85-0.15=
7.1-0.4=9.4+3.4=7+0.5=0.51-0.21=
6.9-0.2=0.1+4.3=31.7+3=0.62-0.33=
9+0.2=7.5+3.4=6.2+1.6=0.57-0.16=
1.9+0.7=1.9+2.9=65.8+6=0.66-0.49=
二、笔算。
4.67+0.21=43.79-1.67=7.9-2.3=69.3-21.4=
7.38+4.14=36.68+4.8=3.13+0.86=59.66+2.88=
9.96-0.86=52.17+6.23=8.02+2=92.6+36.3=
8.04+2.29=26.22+2.03=2.68+0.57=37.34+7.88=
一、口算。
4.7+0.6=9.5+8.9=11.5+1=0.7-0.1=
2.6+0.5=9.6+2.3=7.4-1.2=0.72+0.11=
7+0.4=0.5+2.8=44.4-2=0.99+0.34=
7.7+0.6=8.3-0.5=9.6+2=0.65-0.14=
3.3-0.3=8.2+4.5=39.4-2=0.78-0.48=
二、笔算。
5+0.66=75.94-4.78=7.48-4.46=56.2+19.9=
9.71+3.84=94.9-8.17=5.46+0.97=20.72+8.08=
8.71-0.89=77.7+9.17=9.84-1.72=96.5+44.7=
9.64-3.28=54.66+5.85=1.85+0.17=78.02+4.24=
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