四年级数学下册小数加减法专项练习题168.docx
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四年级数学下册小数加减法专项练习题168.docx
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四年级数学下册小数加减法专项练习题168
一、口算。
7.7-0.2=0.3+2.9=78.1+5=0.97+0.1=
2.5+0.6=5+4=7+2.8=0.81-0.21=
5.3+0.8=3.5+5.7=39.4+3=0.5-0.47=
5.5+0.3=9.4+2.7=9.1-0.4=0.57+0.19=
4.1+0.4=1.6+1=68.1+5=0.69+0.05=
二、笔算。
7.13-0.6=63.82+6.14=7.74-3.15=76.3-23.6=
9.8+3.26=89.36-3.56=3.21-0.21=29.09+4.71=
2.7-0.15=68.84+2.35=9.53+4.85=97.6+11.5=
8.32+2.09=82.28+1.41=1.65+0.29=53.82+9.72=
一、口算。
1.8+0.2=1.9+4.4=62.2-6=0.56+0.03=
3.9+0.4=8.3+4.7=7.7+3.2=0.82-0.21=
7.3-0.1=4.8+4.7=17.5+9=0.95-0.11=
3.9+0.3=5.9+1.6=9.9-2.3=0.52-0.42=
5.9+0.6=8.7+8.5=24.1-3=0.61+0.26=
二、笔算。
2.29+0.19=74.67+9.13=9.55+2.24=85.9+1.7=
7.45-6.95=44.26+7.79=1.77-0.52=15.11-7.45=
4.51-0.74=19.9-5.71=8.66-3.86=82.1+38.5=
8.77-4.77=67.12+7.04=5.66+0.56=39.82+3.88=
一、口算。
1.9+0.3=8.2+8.4=62.6-2=0.94-0.29=
7.3-0.4=6.3+2.8=8.7-5.6=0.97+0.26=
5.5+0.4=8.3+8=26.4-4=0.5+0.08=
7.2+0.9=9.1+1.6=6.7+2.1=0.78+0.38=
1.3-0.1=5.7+5.7=86.4-7=0.71-0.17=
二、笔算。
3-0.24=36.29-2.01=8.27-6.6=76.6-16.3=
7.08+2.27=77.31+2.64=2.93-0.64=65.9+6.12=
4.18-0.14=66.18+3.39=8.99+5.83=66.4+1.4=
8.34+6.72=80.98-4.68=3.68+0.71=57.23-6.78=
一、口算。
6.3+0.9=3.8+0.3=72.9-5=0.87-0.01=
8.9-0.5=9.3+1.1=7+3.4=0.99+0.02=
1.8-0.7=8.8+6=54.9+4=0.89-0.23=
5.9-0.2=6.5-0.7=6.7+3.7=0.86-0.3=
4-0.5=3.9+5.1=87.5-8=0.84-0.08=
二、笔算。
6.37+0.3=46.16+5.3=8.9+5.99=79.1+44=
8.2-3.64=44.4-8.09=8.06-0.64=15.78-7.54=
9.37-0.05=54.99-8.95=8.31+3.7=64.9+20.2=
7.37-2.18=42.06+2.15=5.48+0.16=83.21-3.64=
一、口算。
1.6+0.6=6.9+8.9=29.7-5=0.71+0.45=
1.9-0.7=5.3-3.8=7.5+2=0.8+0.48=
1.8-0.1=1.2+5.2=42.3+3=0.83-0.1=
5.6-0.3=6.9-0.3=6+3.5=0.72-0.22=
5.4+0.8=8.8+6.1=45.8+1=0.76+0.36=
二、笔算。
9.78-0.38=22.76+5.52=7.54+6.87=78.2+2.3=
7.95-2.78=33.89-4.06=9.66+0.45=25.75-5.37=
2.77-0.12=32.13+4.71=8.56-1.86=70+42.9=
9.39+4.07=67.31+3.05=4.65-0.97=16.73-1.94=
一、口算。
7.3-0.4=2.8+5.6=47.3-4=0.94+0.04=
1.5-0.8=6.3+4.9=8.3+4.1=0.94+0.15=
4.9-0.9=2.6+0.7=39.5-6=0.65-0.3=
7.1+0.5=5.5-2.9=6.1-0.2=0.59+0.31=
1.4+0.5=6.2+4.9=54.5-5=0.72-0.46=
二、笔算。
9.47-0.09=83.17+4.48=8.92+6.84=70+24.8=
7.64-4.73=86.04+6.62=8.66-0.47=68.6+5.5=
9.31-0.9=19.31+1.45=7.89+5.83=74-31=
9.66-4.04=97.12+3.86=3.13+0.42=75.81+3.35=
一、口算。
4.2+0.3=5.1+6.1=78.4-7=0.86+0.2=
3.1-0.7=7.9+4.7=6.4+1.7=0.88+0.45=
4.9-0.6=5.5+7.3=55.8+8=0.99+0.41=
2.4-0.4=9.7+3=6.6-5.9=0.65-0.17=
6.2+0.9=9.8+4.2=18.4+5=0.55+0.08=
二、笔算。
7.88-0.73=48.83+7.33=9.36+3.39=77.3+7.3=
7.2+2.26=63.04+8.76=4.61+0.25=46.09-4.73=
3.45+0.22=58.16+8.49=9.87+5.02=52.3+4.9=
7.77-1.64=74.5-7.31=2.45+0.06=27.23+7.15=
一、口算。
1.7-0.3=0.3+5.8=30.6+1=0.93+0.39=
8.1+0.5=8.8-3.6=6.6+2.2=0.58-0.36=
5-0.8=0.9+4.4=29.3+8=0.53+0.29=
3.1-0.3=9.9+2.3=7.9-5.1=0.82+0.14=
8.8+0.5=5.2+7.4=25.4+9=0.71+0.24=
二、笔算。
1.77+0.78=86.55-5.89=7.3+2.65=77.8-3.6=
8.33+6.06=71.58+4.99=2.36-0.5=81.15+5.68=
7.44-0.56=26.51+5.56=9.48+5.44=86.7+10.1=
7.43+6.81=60.62-1.24=8.73+0.02=15.96+4.96=
一、口算。
5.8-0.9=5+0.9=76.9+4=0.55-0.31=
8.4+0.6=5+0.6=7.8+4.6=0.75-0.38=
8.8+0.3=2.6+9.1=40.2-8=0.8-0.12=
5.8+0.7=8.4+0.5=9.6+4.9=0.95+0.49=
7.5+0.4=9.6+8.2=32.4+1=0.84-0.27=
二、笔算。
2.92-0.52=81.73+6.67=8.65-3.65=86-45.2=
8.78-3.44=29.69+6.53=9.09-0.74=14.84-7.63=
5.34-0.84=70.1+2.9=9.14+5.39=71.9+29.2=
9.45-3.91=35.14+8.43=5.32+0.5=93.62-1.3=
一、口算。
3.9-0.3=3.2+6.7=11.3+9=0.94-0.12=
7.7+0.7=9.4+2.2=7.4+2.7=0.57+0.09=
1.6+0.8=5.3+7.1=95.7-2=0.56+0.43=
1.1+0.5=6.7+1.2=7.2-5.9=0.59-0.48=
3.5-0.6=7.5+9.1=90.5+3=0.65-0.49=
二、笔算。
1.33-0.54=20.61+4.84=9.8+5.53=83.2+34.4=
9.45-6.01=45.07-7.65=5.04-0.53=59.96-4.66=
7.64-0.09=54.03-3.52=8.5-3.98=63.7-25.2=
7.73+4.59=66.44-1.11=7.73+0.87=27.8+5.86=
一、口算。
7.9+0.6=6.9+4.2=34.7+1=0.63-0.21=
1.3+0.3=9.4-2.3=6.3-0.8=0.87+0.3=
7.7+0.2=4.1+3.1=53.1+5=0.67-0.04=
2.8+0.8=8.6+3.3=8.1+4=0.52+0.04=
6.6+0.2=1.5+4=25.4+2=0.69+0.17=
二、笔算。
2.29-0.72=98.43-7.93=9.54-3.43=80.4+28.9=
9.22+5.36=80.76+5.52=6.24+0.76=27.33+2.11=
7.24+0.12=11.11+3.63=9.52+4.1=72.3+28.1=
9.89-6.28=41.65-7.06=8.25+0.67=61.86-8.48=
一、口算。
1.3+0.1=8.2+8.5=67.2+6=0.55+0.04=
2.8+0.7=7.5+0.3=6.9+0.4=0.55-0.45=
4.5+0.6=2.3+3.4=59.8-9=0.81+0.45=
3.6-0.5=9.7+3.8=7.4+5.4=0.68+0.16=
2.1+0.6=0.7+5.2=54.7+7=0.95-0.15=
二、笔算。
6.49+0.23=42.66+1.34=9.34+2.61=54.2+18.1=
8.01-5.49=59.11+7.56=5.27-0.99=46.81-7.15=
6.21-0.51=29.43+4.93=8.16+2.77=87.5-1=
7.3-3.25=75.85+3.26=2.87-0.21=60.37-6.27=
一、口算。
6.2+0.5=7.3+6.3=75.5-6=0.96+0.47=
5.7+0.7=7.6+1.3=7.3+4.2=0.57-0.35=
4+0.6=2.7+1.5=20.2+5=0.86+0.48=
8-0.7=7.4-3.1=6.9-4=0.81-0.47=
8.9-0.5=8.5+3.8=65.3+7=0.56+0.46=
二、笔算。
6.04+0.5=27.21-9.78=7.25-5.31=77.4-22.2=
9.58+1.83=60.39-8=7.08-0.35=72.77+6.16=
4.49+0.63=15.53-2.84=7.41+4.37=91.8-22.9=
9.62-5.25=17.68+1.82=7.71+0.43=49.28+8.93=
一、口算。
8.6-0.9=7.8+4.5=13.5-7=0.65+0.16=
6.5+0.9=6.3-3.3=6.5-3=0.59-0.12=
4.1+0.1=3.1+3.3=82.3+8=0.92-0.32=
7.9+0.4=9.5+4.3=7.7-1.6=0.72+0.26=
4.4+0.7=4.7+8.8=59.5+5=0.75+0.03=
二、笔算。
6.44-0.24=45.66+5.93=9.96-4.59=96.4+27.8=
8.5+3.1=98.24-1.21=6.5-0.84=17.04+5.91=
7.13+0.32=26.47+7.28=7.12-2.21=82.9-24.4=
8.37+3.4=16.47+1.91=3.59+0.43=46.16-2.94=
一、口算。
2.6+0.1=1.5+8.2=38.5+7=0.6-0.33=
5.9-0.3=6+2.5=7.9-4=0.53-0.08=
6.4+0.8=5.9+3.8=13.9-3=0.94-0.09=
2.6-0.6=8.5+4.2=9.4+4=0.85+0.43=
3.2+0.5=6.8+3=86.8+6=0.76+0.16=
二、笔算。
5.41-0.23=51.95-4.71=7.86-3.29=52.5-37.6=
8.84+5.77=14.92+1.58=5.14+0.92=76.17+8.53=
2.32+0.64=25.62-2.91=9.16-2.02=56.5+19.8=
9.12+2.54=84.49+3.36=5.31+0.06=73+3.25=
一、口算。
1.9-0.6=3.1+8=55.2-4=0.61-0.32=
8.1+0.5=9.6+0.3=7.7+1.8=0.91+0.36=
7.3+0.8=9.6+9.7=65.3+2=0.85+0.29=
3.5+0.7=8.1+3.5=8.1-4.2=0.67+0.1=
5-0.1=7.1+1.3=77.2+9=0.63+0.29=
二、笔算。
2.26-0.44=24.07+1.71=9.62-5.51=57.7-30.5=
8.88+1.02=92.36+3.67=2.7+0.71=25.2+6.37=
4-0.74=81.3+1.33=8.66-2.78=65.9+8.1=
8.42+4.31=68.48-1.87=9.76-0.59=76.45+9.75=
一、口算。
5.7-0.1=6.4+6.3=33.5+7=0.52-0.3=
2.8-0.4=5.5+3.8=9.6+5.3=0.81+0.35=
4.5-0.6=9.4+2=40.1-4=0.76+0.36=
1.5+0.6=6.8-1.1=8.4+2.9=0.9-0.1=
8.3+0.4=6.9+6.9=89.2+4=0.75-0.23=
二、笔算。
4.2-0.22=60.68+8.71=8.52+5.4=55.2+4.3=
8.93-5.22=64.35-9.61=8.34-0.58=55.95+7.72=
2.42-0.77=15.86-2.17=8.4-1.29=73.4-34.8=
7.88-3.45=66.82-2.2=3.41-0.39=99.48-7.83=
一、口算。
7.9+0.6=3.3+1.3=76.3+1=0.8+0.29=
2.1-0.6=9.7-2.7=9.1-3=0.58+0.16=
2.8-0.5=0.9+1.5=45.1+1=0.75+0.45=
5.5+0.2=9.2+4.2=9-3.4=0.64-0.43=
5.4-0.3=4.7+0.1=32.3+8=0.77+0.39=
二、笔算。
8.44+0.26=32.04-1.06=9.81+5.81=65-14.8=
9.46+5.02=65.04-3.99=1.68-0.65=86.55+6.3=
7.15-0.72=63.63-3.77=9.74-4.4=86.9+48.7=
9.51+5.28=41.63-7.96=7.42-0.16=24.94-1.9=
一、口算。
3.5+0.6=7.3+8.3=51.5-8=0.58-0.03=
7.9+0.3=8.2-3.7=9.6+1.9=0.92+0.36=
2.5+0.2=3.6+5.8=22.3+2=0.92-0.3=
2.4-0.5=9.8-2.7=6.1-1.9=0.83+0.3=
2.8-0.2=3.8+0.7=38.4+5=0.93-0.26=
二、笔算。
3.76+0.35=80.7+8.26=8.41+2.51=81+42.8=
7.4-3.47=58.04+8.42=4.34+0.01=37.15+9.24=
8.62+0.51=29.32-4.4=9.32-3.53=91.6-39.3=
8.68+1.75=47.45-9.51=3.18-0.07=51.85+8.18=
一、口算。
1.1-0.8=4+3.1=73.5+9=0.81+0.07=
3.8+0.8=9-2.5=8-1.4=0.62-0.44=
3.4-0.4=5.8+7.4=97.1-1=0.89+0.26=
7.2+0.8=6.2+0.7=8.6-1.9=0.51-0.02=
4+0.2=0.3+3.9=25.6+1=0.57-0.43=
二、笔算。
7.62-0.54=59.83+7.49=8.65-6.71=76.9+24.7=
7.52-5.26=34.62+6.49=5.75-0.24=63.46-4.15=
9.83-0.82=77.33+7.02=7.36-1.11=59.7+45.6=
8.77-1.39=39.25+7.35=3.53-0.02=29.67+7.35=
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