四年级数学下册小数加减法练习题精选14.docx
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四年级数学下册小数加减法练习题精选14.docx
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四年级数学下册小数加减法练习题精选14
一、口算。
2.7+0.2=7.3+7.3=79.4-1=0.74-0.08=
5.7-0.6=6.1+4=7+3.2=0.94+0.2=
1.2-0.2=9+0.8=18.1-2=0.68-0.34=
6.4+0.1=8.5+3.3=8+0.9=0.97-0.42=
7.2-0.7=3.5+2.6=71.8-5=0.65+0.35=
二、笔算。
4.18+0.65=59.74-8.7=7.7-6.14=66+41.9=
7.12+3.38=60.22+2.23=2.89+0.23=54.11-5.78=
6.86-0.83=30.26+2.21=9.86+2.05=83.7-18.6=
7.92+1.44=93.74+9.29=6.36-0.73=93.15-6.07=
一、口算。
3.7+0.7=3.2+5.1=59.4+1=0.91-0.25=
2.9+0.9=6.7+0.7=6.1-2.1=0.67+0.49=
7.1+0.6=6.8+7.6=25.1-6=0.9-0.43=
4.1-0.8=9.7-0.1=6.1-4.9=0.92+0.45=
2-0.7=3.5+7.7=91.1+1=0.68+0.33=
二、笔算。
6.69-0.47=13.79-3.75=9.66+5.4=82.2-23.8=
7.85+6.34=79.72-8.65=4.07-0.36=86.59-1.34=
2.93+0.4=13.75-2.99=7.21+3.78=52.4+13.9=
7.71+2.57=56.54-1.76=8.25+0.25=87-5.81=
一、口算。
2-0.1=1.3+6.8=81.4+7=0.94+0.28=
2.1+0.2=7.3+4.2=9.2+5.7=0.69+0.14=
1.1-0.6=2.7+4.5=30.2+9=0.51-0.44=
7.9+0.3=5.9+4.4=7.6-0.5=0.59+0.27=
7.2-0.8=6.2+6.5=66.5+9=0.55+0.28=
二、笔算。
4.14+0.49=17.15+5.46=7.78-3.41=87.5+49.2=
8.46-2.65=30.9-9.53=5.73-0.68=37.72-9.99=
4.55-0.45=82.86-4.81=9.48-3.81=90.5-43.4=
7.68+6.81=82.95+8.3=8.72-0.14=18.72-7.59=
一、口算。
3.6+0.7=9.3+6.6=63.2+8=0.92+0.36=
8.1+0.1=6.9+4.6=6.3-0.9=0.7+0.24=
8.2-0.9=8+1.7=25.8+2=0.68-0.23=
3.9-0.8=6.6+1.2=6.7-4.1=0.74+0.39=
6.2+0.5=8.4+6.6=96.1-4=0.57+0.41=
二、笔算。
1.45+0.54=28.59-4.79=9.08-5.47=56.7+1.5=
9.34-3.11=48.85-6.14=3.71-0.69=12.03+9.97=
9.53+0.7=56.55-4.79=7.28-6.31=92.5-45.3=
8.03+3.19=78.07+7.47=1.25+0.54=24.18+3.08=
一、口算。
1.3+0.9=8.8+4.8=57.1+3=0.75+0.27=
3.6+0.1=6.4-1.8=6.4-0.2=0.55-0.36=
3.3+0.1=4.4+4.7=61.2-9=0.53+0.1=
1.4+0.6=7.3-2.8=6.2+0.9=0.93+0.28=
5.7+0.9=0.3+8.1=22.2+6=0.55+0.14=
二、笔算。
1.19+0.83=25.79+5.47=8.85-1.75=79.5+47.1=
8.79-5.31=64.78-5.35=8.76+0.21=65.44+5.62=
8.4-0.38=72.75-1.26=7.79-2.49=60.6-10=
8.9+6.87=45.54+1.1=9.99+0.1=90.15-3.65=
一、口算。
6.6+0.1=3.9+6.7=36.5+1=0.87+0.28=
4.3-0.3=6.9-3.2=9+5=0.96+0.48=
5.1+0.3=2.6+4.4=68.9-9=0.64+0.18=
8.4+0.9=7.3+3=8.5-4.9=0.84-0.26=
7.1+0.5=0.6+7.5=69.1+6=0.56+0.04=
二、笔算。
3.95+0.62=42.94+9.24=7.65-2.63=94+40.5=
7.92-5.68=82.9+9.73=4.48-0.49=78.43+3.08=
5.41+0.98=67.97-4.69=8.55-6.44=56.3-48.9=
9.25-4.47=75.47+9.52=3.89+0.54=93.45+6.43=
一、口算。
6.3+0.5=5.1+4.9=32.9-2=0.79+0.48=
8.3-0.1=5.6-3.2=6.9+3.5=0.64-0.16=
7.8-0.8=0.5+2.3=64.6+4=0.72+0.45=
4+0.5=6.7+3.6=8.8+5.9=0.51+0.08=
7.4+0.1=9.8+3=84.5-2=0.94+0.27=
二、笔算。
1.28-0.34=14.66-3.16=8.97+3.33=52.1+20.2=
7.67-5.34=61.46-1.18=8.76+0.96=74.33-8.1=
9.42+0.78=31.28+6.62=9.49+6.36=67.8-28.8=
7.82+6.36=24.7-3.08=7.9+0.79=89.55+5.49=
一、口算。
6.2-0.9=9.9+0.7=65.9+1=0.78+0.11=
4+0.3=6.3-2.9=8.3+3.3=0.94+0.4=
3.3+0.8=1.2+2.7=90.1+7=0.62+0.41=
6.8+0.6=5.5+0.5=8.1-0.2=0.69-0.41=
7.1+0.3=1+2.3=93.5+5=0.85+0.07=
二、笔算。
5.64-0.3=72.11-8.21=7.75+1.85=80.2+22.1=
8.06-2.67=81.05-7.36=8.57+0.44=89.8+1.6=
5.79-0.62=67.1+1.55=9.81-4.97=55.2-49.4=
7.03-2.4=87.92-9.8=5.43-0.52=59.73+2.67=
一、口算。
3.4+0.8=5.7+8.2=32.1-4=0.67+0.41=
1.1-0.7=8-2.7=7.4+5.1=0.81+0.05=
6.8+0.3=0.7+8.9=52.7-1=0.92+0.28=
5.9+0.2=7.3+2.1=6.3-1.6=0.99+0.01=
6.8-0.4=6.3+5.8=43.1+8=0.85+0.06=
二、笔算。
7.7+0.11=43.39+8.6=7.68+4.07=96-9.2=
9.26+1.49=24.56+3.76=4.68+0.68=22.04+4.26=
8.03+0.48=94.09+5.57=7.19-6.32=94.4+27.4=
7.26+6.3=35.02+4.07=6.02+0.5=35.1-6.51=
一、口算。
4.5-0.6=1.4+2.8=71.2-6=0.57+0.37=
7.5-0.3=6.7-2.9=7+1.7=0.99+0.23=
4.6-0.4=9.1+9.3=68.7+4=0.62-0.26=
7.2-0.8=8+1.1=6+3.8=0.96-0.31=
7.9-0.5=9.9+0.4=51.9-6=0.5+0.33=
二、笔算。
6.8-0.25=76.99+9.75=9.71+4.62=86.1+35.8=
7.6-5.13=58.15-8.98=4.45+0.46=41.95-1.81=
8.48+0.23=90.89+1.31=7.31+5.83=89.3+33.7=
7.66-4.74=88.78-8.05=3.11-0.22=66.45+4.71=
一、口算。
4.7-0.4=0.1+2.6=45.7+3=0.69-0.42=
1.4-0.3=9.6+3.3=8-5.6=0.77-0.24=
5.4+0.4=0.4+6.9=19.1+2=0.55-0.34=
4.6-0.8=7.1+1.2=9.5-5.9=0.75+0.33=
1.2-0.5=4.4+5.1=55.6+8=0.62+0.13=
二、笔算。
7.47+0.86=70.05-9.74=8.77-1.07=97.4+22.3=
9.89+2.45=17.59+3=9.62+0.88=95.92-4.39=
9.22-0.69=47.25-6.54=8.61+2.78=90.6-35.1=
8.15-1.16=79.51+8.03=1.11-0.28=93.27-8.62=
一、口算。
3.2-0.3=6.5+0.9=33.2+2=0.72+0.36=
4.7-0.3=9.8+4.8=8.6-3.5=0.8-0.01=
4.8+0.8=6.4+6.9=34.4-5=0.91-0.17=
2.7-0.1=7.2+1.7=9.9-5.4=0.66-0.38=
7.7+0.7=5.2+2.1=43.4+7=0.93-0.01=
二、笔算。
7.37-0.61=47.28+4.5=8.96+4.74=56.3+2.3=
8.68+6.52=45.87+4.93=7.83+0.99=11.84+1.93=
4.78+0.62=65.41+7.18=8.5-2.53=97.2+18.3=
8.07-4.48=21.42+6.77=7.32-0.33=98.06-1.48=
一、口算。
2.8+0.9=2.9+0.8=49.5-5=0.66-0.4=
4.9+0.1=8.6-2.4=9.2-3.9=0.74-0.13=
5.8-0.7=1.4+1.5=68.5-6=0.91+0.31=
3+0.6=6.1-2.6=7.2-4.5=0.72-0.19=
6.7-0.9=9.3+4.6=75.6+3=0.83+0.1=
二、笔算。
7.65+0.44=74.46+9.04=8.5+5.19=88.2+34.2=
8.52+3.33=61.8+9.47=8.53-0.06=28.64-4.55=
3.9+0.56=62.31+1.8=8.02-3.38=59.5-43.4=
9.3-5.91=47.04+3.58=1.39-0.79=27.07-7.29=
一、口算。
1.8+0.5=6.7+8.7=68.9+1=0.76-0.19=
1.9-0.1=6.2-0.3=8.6+2.9=0.91+0.41=
1.5+0.8=5.6+7.8=32.4+7=0.81-0.01=
4.3-0.2=9.8-3.7=9.9+0.5=0.67+0.06=
8+0.8=2.9+7.8=40.6+8=0.91-0.47=
二、笔算。
1.17-0.49=49.23-6.81=9.36-2.55=58.6+47.3=
9.92+3.83=23.31-6.47=6.73-0.16=41.38+3.16=
2.43+0.67=15.51+3.77=9.69+2.1=83.9+48.8=
8.76+3.6=43.54-6.67=5.47-0.39=84.51+5.81=
一、口算。
2.6+0.1=6.6+8.8=76.5-6=0.54+0.11=
3.9+0.2=9.8+3=9.3-3.6=0.74-0.21=
7.1+0.1=2.7+1.6=43.1-8=0.54+0.2=
1.5-0.5=8.3-4.1=8.9+4.1=0.81+0.29=
7.2+0.5=9.5+3=81.4+4=0.91+0.28=
二、笔算。
8.84-0.15=54.35-1.86=8.79-1.55=57.4+44.5=
8.29+1.7=52.21+5.03=8.1+0.72=61.42-4.34=
2.32+0.46=56.67+6.07=9.14-6.66=90.5-28.6=
8.29+5.33=61.43-9.29=5.1+0.82=40.57+6.32=
一、口算。
5.7-0.6=3.6+0.8=59.3-9=0.59+0.25=
1.7-0.1=5.9-2.8=7.6-3.8=0.89-0.47=
4.3-0.1=9.8+8.7=43.8-5=0.52+0.15=
1-0.1=6.3+3.6=7.3+4.5=0.65-0.39=
2.5-0.5=2.2+7.4=74.5+4=0.77-0.46=
二、笔算。
4.44+0.1=56.19+1.72=9.35-1.86=82.2+11.2=
9.52-4.18=17.15-8.83=2.85+0.99=98.59-9.03=
3.5+0.4=92.31+2.27=9.74-3.99=94.3+44.1=
7.92-6.96=88.37+4.32=9.14+0.48=18.09+4.55=
一、口算。
2.4-0.9=6.2+5.2=40.5+5=0.84-0.04=
2.8+0.6=7.4-1.3=9.1+2.3=0.66+0.36=
8.8+0.5=9+8.5=43.2-6=0.96-0.24=
3.4+0.2=7.9+2.6=9.5+3.4=0.93+0.2=
7-0.7=7.2+8.3=54.7-5=0.75+0.2=
二、笔算。
9.55+0.13=39.2-7.55=8.1+5.15=72.8+24.6=
9.54+5.03=46.2-8.37=6.43+0.43=62.01+3.8=
4.45+0.36=92.47+1.89=7.25-3.47=55.7+10.6=
8.4+2.61=93.18+6.11=8.12+0.24=14.63-8.37=
一、口算。
1.9-0.7=2.8+1.3=31.7+9=0.52+0.28=
5.2-0.8=9.9+1.8=6+4.4=0.84-0.2=
8.4+0.5=0.7+9.9=12.7-6=0.96-0.44=
6.6-0.9=7.1+3.9=6.9-1.3=0.71-0.41=
2.2-0.9=4+5.7=57.9+2=0.59-0.43=
二、笔算。
2.57-0.11=44.51-7.22=7.71+3.58=61.6-25.8=
8.53-3.28=29.9-8.11=8.84+0.12=35.03-4.78=
5.19-0.35=17.09+3.91=9.23+5.53=66.5-34.4=
7.64-1.35=15.08-6.75=2.56-0.6=98.01-8.13=
一、口算。
7.2-0.7=0.7+6.1=85.6+6=0.98+0.12=
3.3-0.9=6.7+4.6=7.2+5.9=0.94-0.39=
7.5+0.4=6.1+5.9=65.6+1=0.73-0.08=
2.3-0.7=7.1+3=8-3.7=0.8+0.16=
5.2-0.1=6.5+8=43.5-1=0.76-0.29=
二、笔算。
7.9-0.58=19.45-5.3=7.06-3.84=97.3-29.9=
9.69+2=87.85-6.6=4.22+0.51=59.09+7.5=
8.43+0.54=17.68-5.92=8.96+2.49=72.8+37.2=
8.79+2.87=26.88+3.69=2.31+0.18=60.33+8.88=
一、口算。
7.2+0.7=9.5+4.1=23.3+5=0.93-0.13=
2.8-0.9=6.7+1.2=8.4-3.9=0.53-0.17=
5.1-0.2=0.9+5.4=32.2+8=0.5+0.04=
8.2+0.8=6.7+4.7=8.5+2.1=0.84+0.32=
5.3-0.5=2.1+2.7=90.9-1=0.5-0.39=
二、笔算。
8.22-0.89=31.43-3.96=8.46+5.02=72.1+22.7=
8.4-6.61=81.08-5.1=1.4-0.45=32.31-3.93=
2.22+0.77=75.45+3.03=9.87-3.15=82.7-14.1=
9.25-5.01=75.13-6.56=4.86-0.76=
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