四年级数学下册小数加减法专项练习题44.docx
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四年级数学下册小数加减法专项练习题44.docx
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四年级数学下册小数加减法专项练习题44
一、口算。
9+0.3=0.2+1.2=35.8-8=0.99-0.16=
3.6+0.8=6.8+3.1=9.4+0.8=0.68-0.3=
8.3+0.7=4.1+8.7=79.6-7=0.55-0.39=
3.6+0.1=7.7-1.4=6.4+4.2=0.68-0.31=
6.2-0.8=9.7+2.2=45.2+6=0.66-0.45=
二、笔算。
2.45+0.18=27.16+7.14=9.13-2.5=89.6-7.3=
8.52-3.95=20.22+2.57=8.9+0.52=78.08-2.75=
6.32-0.93=22.97+8.89=7.85+2.2=80.6+29.4=
8.31-4.73=62.43+2.23=9.94-0.23=62.11-5.56=
一、口算。
7.1+0.4=9+9.6=46.8+4=0.63-0.13=
9-0.9=5+3.9=9.1-1.9=0.77+0.05=
6.4-0.2=4.3+2.6=69.9+4=0.89-0.05=
5.4+0.6=6.8+2.4=7.9-5=0.61-0.42=
5.1-0.1=1.2+2.4=21.1+2=0.77+0.05=
二、笔算。
2.58-0.71=18.93-7.72=9.44+1.62=53.9-18.1=
8.89-5.66=29.02-9.75=2.61-0.13=13.52+9.71=
6.59+0.54=53.32+3.15=8.39-1.12=74.2+28.6=
9.86-1.46=71.06+4.07=7.96-0.63=97.12+8.5=
一、口算。
5.3-0.2=6.8+6.8=34.2+1=0.65+0.3=
2.4+0.3=8.9+1.9=9.1+0.5=0.52+0.23=
3.8-0.6=3.3+1.2=57.4+5=0.75-0.06=
8.1-0.7=7.4-3.6=8-1.1=0.84-0.45=
6.5+0.9=9.8+2.7=58.2+2=0.68-0.22=
二、笔算。
9.34-0.54=54.64+1.99=8.03-4.09=98+35.3=
7.7-2.14=64.63-6.82=6.93-0.88=89.73-4.56=
3.28-0.7=91.71-3.28=8.8-6.5=86.5-8.4=
9.86+6.53=88.83+7.8=5.14+0.82=98.73-7.05=
一、口算。
6.1+0.9=0.8+1.9=90.1-6=0.66+0.36=
2-0.3=6.3-4.4=6.3-3.7=0.98-0.45=
3.3-0.2=7.9+0.2=87.5+7=0.86+0.29=
4+0.6=9-3.7=7.2+0.1=0.54-0.35=
2.5-0.5=6.3+7.7=60.3+4=0.76+0.49=
二、笔算。
4.81+0.18=25.1-5.11=9.64+6.87=53.7+45.5=
9.79-4.21=96.01+5.95=7.75+0.75=20.84-6.51=
3.61+0.18=76.92-3.83=8.11+4.97=77.1-23.3=
7.31-6.42=78.5-2.69=9.14+0.04=42.27+2.67=
一、口算。
5.5+0.4=4.7+0.7=38.8+8=0.57-0.14=
7.8-0.3=9.3-4.7=7.3-0.9=0.86-0.24=
3.6-0.3=0.5+0.1=54.5-3=0.75+0.33=
2.9-0.9=6.8-3.5=9.1+2.4=0.89+0.25=
6.3-0.6=4.6+4.7=85.5+7=0.56+0.38=
二、笔算。
6.13+0.99=70.5+2.66=8.15+1.42=65.5+39.8=
8.7+1.57=77.59-6.44=5.81+0.99=80.29-3.43=
3.08-0.54=81.61-5.92=8.08+2.34=94.1+45.2=
7.7-2.04=43.89-3.74=2.35+0.55=59.59+4.74=
一、口算。
8.5+0.4=2.8+1.1=70.5+3=0.59+0.4=
7.3-0.7=9.5+2.3=7.2-3=0.52+0.01=
7.2+0.5=7+4.3=99.8+7=0.97+0.05=
1.8-0.8=7.8-4.3=6.7-0.3=0.79-0.46=
1.3+0.8=5.4+3.4=31.7+1=0.77-0.03=
二、笔算。
6.61-0.66=94.99+7.7=7.58-4.98=94.9+35.7=
9.93-1.3=37.26-1.63=7.29+0.07=74.21+9.48=
6.49+0.95=47.51+6.96=9.69+2.77=54.8-10.4=
9.53-2.13=86.76+9.4=4.36+0.58=41.66+5.46=
一、口算。
6.4+0.3=2.8+7=50.9+9=0.58+0.03=
7.2+0.6=6.2-3.5=7.6-3.3=0.59+0.33=
3.4+0.1=6.7+8.5=48.8+2=0.73-0.49=
7+0.6=6+2=8.6+1.7=0.6+0.11=
8.8+0.6=8.7+3.9=80.5+2=0.97+0.38=
二、笔算。
5.24+0.15=34.59-8.47=7.12-3.85=78.3-22.6=
7.66+3.12=27.02+2.1=5.61+0.56=68.32+3.17=
8.22-0.22=61.76-7.73=7.07-3.5=90+8=
7.68-2.37=94.93-5.53=8.83-0.71=64.79-6.33=
一、口算。
4.7-0.7=7.2+9.3=56.2-7=0.61+0.06=
7.6-0.1=9.3-2.6=6.5+5.5=0.58+0.31=
4.8+0.2=0.8+2.1=34.7-3=0.74+0.09=
5.3-0.6=5.2-0.5=8+5.1=0.76+0.21=
5.2-0.1=2.5+6.6=43.1+5=0.66-0.23=
二、笔算。
3.85-0.39=33.03-9.62=9.46-3.38=94.8-1.1=
7.7-5.56=17.03-9.9=5.24+0.05=51.82-3.52=
1.03-0.13=52.43-6.2=8.44-6.79=60.5-21.3=
7.89+5.44=69.46-6.16=9.39+0.24=41.47-6.79=
一、口算。
5.3-0.6=3.1+2.5=11.2-1=0.57+0.19=
1-0.5=6.9+1.4=7.9-0.3=0.5+0.4=
6.6-0.5=5.5+4.5=68.7+7=0.52+0.19=
2.4+0.1=6.6+3.4=7.1-4.6=0.63-0.02=
3.9-0.5=3.6+0.6=72.2+9=0.54+0.4=
二、笔算。
8.43-0.8=89.73+7.24=9.45-5.14=69.1-22.3=
8.11+4.68=18.53+7.11=5.78+0.21=74.65-1.63=
1.76+0.92=89.57+1.53=8.53-3.39=73.6+11.9=
8.54+1.07=49.68-2.72=1.6+0.51=87.13+1.07=
一、口算。
8.2+0.7=8.1+0.1=96.5+4=0.98+0.45=
8.3-0.9=8.6-2.3=9.9-4.5=0.61-0.1=
1.2-0.2=3.4+6.6=47.6-4=0.7+0.36=
5.3+0.2=9-0.3=6.7-2.5=0.64+0.17=
3.4+0.3=8.5+9.9=35.6+5=0.66-0.25=
二、笔算。
3.77-0.43=25.56-1.98=9.32-6.97=91.3-8.4=
8.96-6.47=15.27+4.69=4.13+0.39=64.57-9.9=
2.48+0.33=92.08+7.07=7.21-6.7=98.9-12.7=
7.79-5.21=26.35+4.88=5.12-0.99=24.92-1.26=
一、口算。
5.8+0.4=9.2+0.8=56.6-2=0.56-0.41=
4.7+0.1=6.2-1.8=6+5.8=0.83-0.24=
5.6+0.4=9+5.2=81.5+7=0.62+0.09=
6.5-0.1=9.6-3.2=6.6-5.3=0.87-0.03=
5.3-0.6=9.4+4.5=81.9-2=0.56+0.45=
二、笔算。
1.57-0.11=90.51-5.46=7.74-2.52=99.6+47.4=
8.28+4.59=93.03-9.68=3.88+0.15=67.82-2.62=
8.42-0.06=72.36+4.58=9.5+4.6=64.7+27.4=
7.25-5.86=43.61+5.17=8.66-0.32=84.24-4.42=
一、口算。
2.6+0.7=9.7+7.9=95.9-4=0.64-0.43=
4+0.3=7.7+2.2=9-1.5=0.7-0.11=
8.7-0.1=3.4+4.1=83.8+6=0.69-0.35=
2.2+0.6=7.2-1.8=7-4.5=0.81-0.29=
7.8+0.4=6.2+1=88.8-4=0.96+0.13=
二、笔算。
9.83-0.99=11.65+9.4=9.76-1.62=87.3+26.1=
8.3+5.39=82.57-6.59=3.02+0.86=28.3+3.63=
3.77-0.08=26.19-1.08=9.57-5.34=96.7-15.8=
8.73+4.91=89.3-1.12=2.16+0.63=67.23-6.36=
一、口算。
3.8+0.5=4.3+9.7=18.4-6=0.63+0.43=
8.7-0.2=8.1-2.3=9.6+1.8=0.96+0.13=
5-0.1=1.4+7=82.5-7=0.95+0.2=
2.8-0.4=5.4-3.9=9.7+5.3=0.91-0.39=
1.1+0.1=9.3+8.3=30.4+1=0.55-0.22=
二、笔算。
4.48-0.18=26.68+1.55=8.53-3.62=56+31.5=
7.65-4.92=43.04-6.02=6.6+0.87=13.77-2.16=
6.28+0.29=79-2.74=8.36+3.34=75.3-40.7=
9.77+1.61=48.32-9.22=2.49-0.57=38.87+6.73=
一、口算。
3.2+0.2=6.6+4.5=47.1-7=0.62+0.21=
1.3+0.4=5.7-1.1=6.9-4.2=0.72-0.26=
1.3-0.7=9.4+8.8=92.7-3=0.56-0.04=
3.5-0.9=5.2+1.9=7.1+0.4=0.99-0.05=
2.7+0.7=6.4+8.6=19.1+6=0.98+0.01=
二、笔算。
5.6+0.49=29.9+3.56=9.62-1.02=76.3+44.9=
7.99-4.39=55.94+9.92=5.01+0.32=71.99-2.75=
6.27-0.36=58.99-6.36=9.36-6.43=75+49=
9.22-4.54=54.73+1.83=2.55+0.25=40.41-4.48=
一、口算。
2.6+0.6=8.5+4.2=20.6-8=0.96-0.38=
5.3-0.4=5.5+0.9=7.1+4.6=0.86+0.14=
4.4+0.5=9.5+2.6=35.8+2=0.85-0.07=
4.6+0.4=5.4-1.5=7.9+2.4=0.84+0.21=
8.7+0.1=1.9+5.8=64.6-7=0.84+0.32=
二、笔算。
3.17-0.67=52.02+2.77=8.58-4.12=59.3-39.1=
9.52-5.64=75.06+2.07=9.56-0.9=61.64+9.53=
5.48-0.4=50.48-1.46=7.47-1.42=99.9+36.5=
7.2+6.86=10.23+2.72=1.49-0.65=82.38+3.64=
一、口算。
5.7-0.6=8.4+5.7=40.2+5=0.82-0.01=
8.2+0.9=8.6-2.7=7.9-4.6=0.57-0.21=
2.9+0.5=6.9+1.4=32.2-6=0.78-0.29=
3.1+0.1=8+4.7=8.8-1.6=0.63+0.04=
7+0.5=3.2+4.4=29.8-7=0.79+0.39=
二、笔算。
2.28+0.67=93.39+2.7=9.93+2.93=85.1-6.8=
8.02+5.53=29.11-1.27=3.2-0.39=32-6.77=
2.24-0.44=18.29-9.23=9.48-2.2=70.5-6=
7.55-6.21=68.74-9.62=4.48+0.58=36.9+6.86=
一、口算。
1.7-0.5=7.1+2=35.1-8=0.83-0.19=
7.3-0.1=5.8-3.4=8.1+5.2=0.57+0.08=
3.4-0.5=6+8.2=71.5-4=0.55-0.41=
4.6+0.3=9.4-1.7=7.8-4.6=0.8+0.29=
1.3+0.4=1.4+8.3=69.9-7=0.84-0.07=
二、笔算。
6.77+0.65=45.6-4.04=8.32-6.06=91.7+40.4=
7.13+2.54=23.46-4.56=8.15-0.85=98.87-5.32=
1.35+0.87=24.68-2.4=9.22-1.99=59.6-39.1=
9.53+5.71=22.19-7.14=5.44-0.9=24.32+5.92=
一、口算。
7.4-0.8=7.5+0.9=21.8-6=0.88+0.01=
7.8-0.3=5+3.3=8.9+4.1=0.6-0.08=
4.4-0.5=4.1+6.4=23.6+6=0.53+0.22=
5.7+0.6=9.5+2.8=7.6+3.7=0.5+0.07=
8.1-0.8=4.5+0.5=60.4+3=0.5+0.36=
二、笔算。
5.62-0.53=59.49+7.8=9.96-1.61=94.3-6.5=
8.48+3.77=78.38+1.92=6.16-0.11=65.19+2.43=
5.24-0.56=10.53+6.44=9.43-2.82=96.1+11=
7.74+1.05=73.29+3.72=6.21-0.42=68.1-3.1=
一、口算。
5.4+0.3=4.4+3.4=91.4-6=0.64+0.38=
8.4+0.9=7-4.9=9.9-2.3=0.64-0.41=
8.1+0.8=6.2+1.5=88.8-4=0.91+0.42=
4-0.7=9.6-4.2=6.1+2=0.55+0.14=
7.9+0.9=6.9+7.1=89.4-3=0.77+0.23=
二、笔算。
1.26+0.04=10.72-3.35=9.72-2.63=84.3-30.7=
8.25-6.39=27.66+3.72=8.75-0.72=65.51-1.81=
5.66-0.51=64.58+2.71=8.85+4.67=91.2+38.7=
9.06+1.25=73.15+4.52=7.83-0.97=30.96-4.59=
一、口算。
5.3+0.8=1+1.8=85.5+7=0.68-0.26=
7.9-0.1=9-2.6=8.3-2.9=0.87+0.36=
7.8-0.7=6.5+1.3=36.2+6=0.65-0.13=
7.6-0.8=5.3-1.7=6-5.9=0.81-0.49=
6.6+0.1=6.8+1.5=78.2-7=0.6+0.33=
二、笔算。
4.46+0.56=61.92-1.73=8.73+2.55=61.4+12.5=
9.55+6.03=41.01-8.75=5.04+0.11=30.52-8.45=
8.78+0.48=11.64-8.35=9.08+4.66=55.2-33.6=
9.89-6.4=68.73-3.5=3.9+0.91=12.58-9.06=
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