四年级数学下册小数加减法练习题精选98.docx
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四年级数学下册小数加减法练习题精选98.docx
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四年级数学下册小数加减法练习题精选98
一、口算。
5.5+0.5=4.7+5.9=59.4+2=0.64+0.4=
4.1-0.4=5.3-4.9=9.4-2.2=0.7-0.44=
3.7+0.2=5.6+9.5=25.3-6=0.64+0.19=
1.4+0.7=9.2-4.3=8.2-1.4=0.53+0.27=
4.5+0.6=5+8.2=87.7+8=0.67+0.28=
二、笔算。
1.26+0.82=79.99+3.6=9.43-6.5=98.3+44.6=
9.42+1.72=51.22-4.71=5.25-0.3=11.2+1.67=
7.65+0.96=90.9+1.42=9.55+3.99=52.6+10.7=
8.5-2.92=26.55+5.64=2.97-0.72=54.46-1.48=
一、口算。
4.2+0.2=4.4+1.5=65.4-4=0.85-0.11=
8.6+0.4=8.9-2.1=9.8-4.7=0.52+0.3=
1.3+0.6=1.1+7=18.8+6=0.78-0.3=
5.2-0.8=9-0.1=9.3-3.4=0.59+0.22=
1.6-0.3=9.9+3=82.1+9=0.94-0.47=
二、笔算。
3.27+0.43=45.26-4.15=7.55-3.49=69-14.8=
8.95-2.65=97.67+7.98=1.02-0.23=44.71+2.1=
8.02-0.3=55.41+1.42=7.68-2.41=61.2+36.5=
7.29-4.14=33.95-3.12=9.23-0.97=35.34-4.54=
一、口算。
2.2+0.4=7.5+2.4=76.6+5=0.5-0.12=
4.8-0.1=8.8+4.6=6.7-5.6=0.61-0.03=
8.4-0.4=3.3+0.9=19.3-9=0.68-0.28=
5.9+0.8=6.4+0.4=7.1-3.9=0.67-0.02=
3.7+0.2=4.7+8.8=68.3+8=0.5-0.27=
二、笔算。
6.48-0.19=62.03-4.9=7.7+3.18=73.8+8.8=
8.68+3.35=42.97-6.04=7.48-0.33=72.28-5.41=
5.51-0.46=57.81+5.11=8.27-4.96=62-27=
7.11+2.19=42.99-4.18=4-0.9=92.36+6.84=
一、口算。
1.6-0.8=9.8+3.6=84.2-9=0.63-0.38=
7.6+0.4=8.8-1.9=8.8-5.3=0.6+0.19=
1.8+0.5=1+2.1=29.2+9=0.59+0.37=
1.9+0.1=9.3-2.7=7.2-2.5=0.67+0.38=
6.6+0.3=7.7+6=43.4-3=0.59+0.42=
二、笔算。
8+0.9=76.61+6.58=8.97-4.94=98.4-29.5=
8.09+4.2=44.4+7.87=5.12-0.72=62.7+9.37=
3.69-0.9=82.93-5.33=7.62-1.12=83.4+41.9=
8.17+4.54=26.39+3.92=1.67-0.3=51.09-4.62=
一、口算。
5.9-0.5=5.1+6.9=99.9-5=0.6+0.3=
5.8-0.3=8.8-4.6=9.9+3.4=0.5-0.1=
1.8-0.2=4.3+2.8=89.1-8=0.93-0.06=
1.3+0.9=6-2.6=7.3+0.8=0.72-0.4=
2.6-0.2=6.2+3.1=69.6-2=0.86+0.25=
二、笔算。
5.09-0.9=61.09+7.6=8.04-5.16=69.7-35.7=
7.92-5.81=38.99+2.61=3.14-0.87=25.43-4.96=
2.73+0.81=26.21-8.72=9.15-4.54=99.9+43.5=
7.09+2.19=38.79+5.94=1.16+0.8=79.2-2.14=
一、口算。
1.6+0.1=5.8+5.5=14.9+5=0.71+0.06=
4.4-0.3=7.1+0.3=6.6-5.2=0.57-0.18=
5.2-0.9=4.7+8.8=97.3+9=0.53-0.15=
7.6-0.6=5.7-2=6.1-0.3=0.82-0.45=
6.7+0.4=8.2+6=29.8-7=0.57+0.39=
二、笔算。
6.88-0.28=19.15+8.29=7.15+2.78=63.9+24.7=
7.39+2.99=18.83+4.43=6.46-0.18=53.99-7.69=
5.44+0.14=32.23-4.12=8.99+3.09=58.8+1.8=
9.95-3.59=63.72-7.02=8.05+0.4=97.31+7.57=
一、口算。
4.3-0.8=6.1+9.4=48.4+3=0.69+0.44=
2.9-0.2=6.8+4.4=8.2+2=0.99-0.36=
6.6-0.4=3.9+9.5=70.7-5=0.65-0.35=
2.8+0.4=9.9-0.6=7.2+0.9=0.61+0.25=
8.8-0.3=3.4+9.2=18.6+5=0.69-0.44=
二、笔算。
7.73+0.65=36.93-2.09=7.84+3.23=75+41.5=
7.09+1.73=56.17-9.74=1.69-0.65=55.05+3.66=
3.21+0.7=30.03-4.12=9.51+6.66=68+24.5=
9.67+5.2=16.22+7.87=4.9-0.93=23.41+9.73=
一、口算。
8.3-0.3=4+3.5=39.8-8=0.78-0.01=
7.1-0.2=6.9+1.1=6.4-4.1=0.57+0.4=
6.6+0.7=9+0.1=74.1-1=0.56-0.38=
3.8-0.1=6+3.2=6.8-5.9=0.79+0.3=
8.2-0.8=3.4+1=70.2-9=0.68+0.26=
二、笔算。
7.85+0.4=23.55+1.46=8.11+4.17=96.4+24.6=
7.88+1.91=91.7-2.98=1.23-0.93=93.78+4.51=
4.97-0.57=41.09-5.8=8.19+1.15=85+40.7=
7.26+6.1=96.98+6.91=7.05-0.68=77.34+4.3=
一、口算。
3.1-0.8=7.8+0.6=41.6-8=0.86-0.04=
4.2-0.1=9-3.3=8.3-2.3=0.85-0.1=
5.6-0.9=1.6+0.8=32.3-1=0.96-0.05=
7.3-0.8=5+4.2=6.1-2.2=0.63+0.44=
3.2-0.3=5.5+6.2=52.1-3=0.72+0.48=
二、笔算。
6.12+0.78=79.67+5.48=7.55+3.02=83+30.6=
8.73+1.19=28.09+3.04=9.28-0.08=85.41-4.19=
2.11-0.77=87.92+4.7=7.64+5.6=55.6-47.7=
8.92-6.18=70.33-1.82=6.75+0.69=12.98+2.67=
一、口算。
8.8+0.2=9.7+7.5=28.6+5=0.59+0.44=
7.5+0.8=5+2.4=8.9+5.2=0.57+0.03=
4.7+0.8=9.9+1.9=33.5+3=0.98-0.35=
2.4+0.9=8.5+2.1=6.4+2.2=0.61+0.37=
8.9+0.7=5.1+6.4=10.8+7=0.89-0.25=
二、笔算。
5.9+0.67=37.39-8.55=7.86+3.92=67.6+7.4=
9.15-2.45=43.67+7.06=8.76-0.67=71.7+8.12=
7.99-0.63=52.49+6.62=7.25-6.68=73.6-2=
7.49-6.56=66.22-3.82=5.74+0.4=76.59-1.5=
一、口算。
7.1+0.1=2.7+3.7=64.7+3=0.94-0.32=
4.2-0.7=7.9+4.8=8+5.6=0.61+0.17=
5.5+0.5=0.8+2.9=73.2+5=0.53+0.06=
1.7+0.6=5-0.4=7.4+1.4=0.92+0.12=
6.8+0.9=8.6+9.6=18.3+8=0.62-0.41=
二、笔算。
1.45+0.1=84.15-7.18=7.15+4.48=76.7-12.7=
8.86+1.92=47.83-3.41=9.74-0.7=13.09-2.69=
1.46+0.37=52.4-7.07=9.85-1.72=57.3-28.4=
8.73-1.19=11.47+3.58=5.46+0.65=28.32-9.43=
一、口算。
1-0.2=7.3+6.5=97.9-7=0.73+0.2=
8.4-0.5=5.2-4.3=9.9-2=0.63-0.36=
5.9-0.4=2.6+3.3=31.6-8=0.97-0.11=
8.2-0.4=8.9-0.1=8.2+0.5=0.87-0.45=
7.4+0.7=4.7+4.8=98.5-3=0.67-0.31=
二、笔算。
7.92+0.05=34.31+3.29=8.3+4.38=85.2-21.4=
8.99-1.62=82.63-3.07=7.95-0.27=26.63-1.81=
9.22+0.57=61.02-1.2=7.56+2.34=78.5-34.1=
8.34-3.01=33.97-4.39=7+0.77=25.65-2.67=
一、口算。
5.9-0.7=7.7+3.1=65.9-9=0.91+0.31=
2.4-0.6=9.8-2.2=6.6+4.9=0.71+0.28=
8.9+0.8=3.3+6=32.5-4=0.63+0.26=
1.4-0.2=6-3.8=7+1=0.97-0.11=
2.2+0.1=6.7+2.6=39.3+3=0.94-0.39=
二、笔算。
2.59-0.35=53.93-1.86=9.5+6.31=85.7-9=
9.19-6.24=56.37+4.76=2.55-0.61=72.12+9.45=
4.85+0.88=81.33-9=8.76-5.09=72.3-31.5=
9.44-4.8=57.82+6.77=6.74-0.27=48.08+2.65=
一、口算。
5.8-0.1=5.1+5=42.5+4=0.55+0.22=
7.6-0.4=8-1.6=6+2.3=0.62-0.44=
7.1+0.2=0.6+4.1=60.7-7=0.8+0.23=
6.9+0.1=7.3-0.6=9-1.7=0.62+0.04=
2+0.7=6.6+2=91.3-9=0.84-0.44=
二、笔算。
4.99+0.17=45.43+1.15=7.32-4.98=53.5+44.1=
9.12-6.89=23.42-8.27=9.11-0.46=16.99+2.27=
4.09-0.06=27.49-4.35=9.54-4.63=55.4+3.2=
7.12-5.99=31.89-9.43=2.88-0.74=43.08+3.4=
一、口算。
5.9-0.8=2.3+3.7=76.7+4=0.75+0.26=
1.1+0.2=5.5+3.2=6-1.8=0.8-0.3=
3.2-0.5=1.7+9.4=54.3+5=0.97+0.29=
5.8-0.4=7.6-4.6=8.5-3=0.86+0.36=
3.5-0.5=1.4+6.2=90.8+1=0.55-0.31=
二、笔算。
9.93-0.18=92.54+2.95=7.86+6.29=71+26.2=
8.88+4.45=79.66-7.15=2.3-0.65=87.18+3.69=
2.43-0.76=83.74+3.36=8.26-4.26=57.9+10.9=
7.31-5.35=33.26-8.36=5.85+0.59=43.46+3.29=
一、口算。
6.9+0.8=5+3.9=21.9-4=0.72+0.24=
7.1-0.7=8.1+3.5=6.7-0.8=0.63-0.27=
4.6+0.6=4.5+5.4=35.3-7=0.57+0.18=
6.2+0.3=8.8-3.9=9.7-3.6=0.72-0.23=
5.5-0.2=4.8+1.4=52.5+3=0.76+0.13=
二、笔算。
7.75-0.73=84.59-2.87=8.76-5.42=84.1+17.3=
9.51-1.74=69.54-9.38=9.17+0.12=25.76+3.32=
6.83+0.38=38.92+1.23=9.33-6.74=56.6-29.3=
9.49-3.83=35.27-1.9=9.77+0.67=62.32-3.57=
一、口算。
8.3-0.1=2.1+8.1=28.2-4=0.94-0.37=
8.2+0.7=5.4+1.6=7.3+0.3=0.85+0.21=
3.2-0.2=9.8+6.6=58.6+4=0.52-0.3=
8.8+0.7=6.3-4.1=7.7+1=0.8-0.27=
6.9-0.2=4.9+3.3=69.7+7=0.88-0.1=
二、笔算。
7.98-0.96=92.43+9.42=8.25-1.78=64.4+35.9=
8.35-2.98=36.6+5.47=4.77-0.27=10.31-5.74=
8.89+0.45=79.87-1=8.66+5.79=95.8-47.8=
8.33-4.58=92.59+3.9=9-0.36=61.63-8.45=
一、口算。
5.4-0.1=0.5+4.3=53.8-6=0.51+0.48=
5.2+0.2=6.4+0.5=6.7-2.1=0.75+0.15=
2.1+0.2=4.3+7.7=91.3-6=0.96-0.13=
1.9+0.2=7.1-4.5=7.3-5=0.89-0.35=
2.2+0.6=9.9+1.9=59.8+9=0.63+0.35=
二、笔算。
3.86-0.65=32.26+4.28=7.81-1.43=65.5+7.4=
8.08-1.46=13.51+8.67=1.36+0.14=31.14+6.67=
4.46+0.51=99.9+4.73=7.65+1.42=74.5+22.9=
7.71+3.49=28.73-4.08=5.53-0.13=11.23-5.71=
一、口算。
3.8+0.5=3.9+7.1=64.6+8=0.8+0.14=
5.7-0.5=9.8-3=7.5-0.9=0.55+0.42=
8.8-0.5=4.8+0.9=49.2+8=0.61-0.13=
6.6+0.2=5-2.7=7.5+3.8=0.74-0.47=
5.1-0.7=5.7+7.2=29.3+2=0.67-0.12=
二、笔算。
2.02+0.9=70.43-7.21=8.69+2.93=71.6+20.9=
7.32-6.36=26.36-7.15=3.15+0.09=50.74+4.63=
4.55-0.13=48.23+4.23=9.19+3=67.4+24.8=
8.6-3.99=26.88-8.15=6.11+0.37=66.43-5.02=
一、口算。
3.5+0.5=6.3+6.2=14.2-9=0.92-0.37=
9-0.9=9.1+3.3=9.6+4.6=0.83-0.36=
6.7+0.1=8.7+4.9=79.9+3=0.77-0.46=
2.8+0.6=7.7-1.4=9.9-1.6=0.69-0.05=
7.2-0.7=5+0.5=13.5-2=0.64-0.24=
二、笔算。
7.14+0.84=86.22-1.63=9.42+5.33=64.6+42.8=
7.57+5.68=56.15-5.16=5.35-0.58=43.56-7.49=
1.31-0.22=34.72+9.08=8.76+5.37=57.1+17=
8.4+2.34=69.58-2.33=4.76-0.49=14.35+8.92=
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