四年级数学下册小数加减法专项练习题140.docx
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四年级数学下册小数加减法专项练习题140.docx
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四年级数学下册小数加减法专项练习题140
一、口算。
5.6-0.6=1+6.1=69.5+2=0.62+0.47=
2.4-0.9=9.6-2.4=6.5-0.6=0.66-0.28=
3.9-0.9=2.3+1.6=66.1+3=0.73-0.11=
7.3-0.8=5.1-1.8=7.1-3.1=0.67-0.37=
6.7+0.1=7.4+2.8=35.9-9=0.59-0.26=
二、笔算。
2.31+0.73=42.96-6.99=7.6-4.5=94.3-36.5=
8.4-6.43=90.8+9.19=3.68+0.67=65.92+3.45=
3.33+0.68=92.33+6.83=7.26+2.72=63.6-35.7=
7.47-3.15=25.2-9.3=3.09+0.18=11.37-5.82=
一、口算。
6.6-0.3=7.6+2.3=37.1-7=0.67+0.19=
1.1+0.5=5.1-3.3=7.1-4.1=0.5-0.16=
8.9+0.3=9.8+1.1=78.5+6=0.82-0.38=
1.7-0.9=7.9+3.7=6.8-2.9=0.69+0.09=
5.7-0.1=8+5.7=66.4-8=0.64-0.36=
二、笔算。
4.8-0.67=58.04-9.75=7.95+1.93=52.3+32=
8.07+1.19=76.61+1=8.73-0.4=61.13+8.44=
9.35-0.38=29.38+1.57=7.21+2.77=57.9+23.4=
9.01+2.05=32.38+1.23=2.47+0.15=20.33+3.3=
一、口算。
8.6-0.7=3.1+6.1=98.6+2=0.66-0.39=
6.6-0.5=5.9+3.5=9.3+2.3=0.54-0.19=
5.1+0.3=8.2+8.2=11.3-9=0.86-0.18=
5.8+0.7=7.8-4.2=8.4+1.5=0.89+0.11=
1.8-0.5=9.9+7.5=32.5-4=0.63-0.18=
二、笔算。
4.35+0.37=74.04-8.76=9.1+4.7=92-24=
9.29+3.02=58.04-4.34=4.14+0.24=24.41-7.33=
5.53-0.61=31.5-7.55=8.76-5.46=99.1+22.9=
8.07-5.88=36.39-2.09=7.4+0.89=73.34-6.33=
一、口算。
7.4+0.5=7.4+7.1=47.4-1=0.61+0.14=
9-0.3=8.7-0.8=7.2+4.7=0.7+0.02=
7.2+0.7=3.6+4.1=66.8+6=0.98+0.03=
8.7-0.8=7.4+0.1=6.3+3.6=0.57+0.23=
6.4-0.9=2.1+7=27.7-7=0.71+0.37=
二、笔算。
9.77-0.78=60.78+1.29=7.47-5.39=78-7.1=
7.75-6.49=34.05+2.49=9.57-0.52=67.62-2.75=
6.99-0.58=22.11-3.05=7.64-3.89=56.1+22.6=
7.9+6.98=52.68+2.56=4.66+0.25=10.48-7.79=
一、口算。
1.4+0.8=2.5+3.1=72.7+2=0.58-0.05=
3.2-0.1=6.6-1.2=8.5-1.3=0.84+0.26=
5.5+0.1=4.5+5.1=80.7-1=0.84-0.09=
5.6+0.9=6.4+3.6=7-4.4=0.74+0.48=
8.9+0.7=9.7+8.4=12.8+8=0.88+0.14=
二、笔算。
2.67-0.51=59.77+6.9=9.91-3.15=55.7+40=
9.06-1.86=40.73+4.97=7.35-0.5=68.42+3.11=
1.48+0.1=37.17+6.4=7.44-3.21=64.5-2.2=
8.06+5.35=80.42+2.37=8.41+0.83=37.35-3.45=
一、口算。
4-0.2=5+7.3=35.3+1=0.81+0.48=
9+0.2=8.2+2=7.2-5.1=0.8+0.22=
8-0.7=9.9+8.8=41.8+8=0.84-0.27=
2.2-0.9=9.2+2.8=6.7-1=0.89+0.17=
3.6+0.3=8.3+4.9=29.5-8=0.71-0.43=
二、笔算。
7.47-0.54=86.17-8.22=7.97+4.91=71.6+29.8=
9.54+2.99=82.17-1.48=2.58-0.21=29.84+5.52=
3.68+0.26=24.48-4.56=7.9-3.59=57.5-26.3=
9.25-5.73=12.02-5.05=6.63-0.83=21.42+7.5=
一、口算。
7.7-0.7=2.4+6=99.4-3=0.51-0.39=
2.9+0.3=8.9-3.7=8.6+3=0.56-0.35=
5.9+0.5=1.9+2.6=40.8+6=0.54-0.33=
3-0.8=8.6+2.7=8+2.9=0.92+0.14=
3.8-0.5=1.9+3.9=17.6+2=0.97+0.14=
二、笔算。
1.61-0.63=83.93+5.9=9.55+6.29=60+2.3=
7.72-4.3=81.45+1.16=6.3-0.8=23.04-2.88=
4.34+0.6=58.25+4.56=9.68-6.02=60-35.7=
9.6-3.89=18.36+1.91=8.93+0.7=12.24+6.79=
一、口算。
2.5-0.9=1.5+1.6=85.9+2=0.72+0.08=
4.5-0.2=9.5-3.3=6.5+3.1=0.96-0.28=
2.6-0.1=5.6+7=29.4-6=0.72-0.43=
8.3-0.3=7.3-4.9=7.3+5.8=0.59+0.22=
5.1-0.8=5.1+5.4=25.8+3=0.6+0.34=
二、笔算。
5+0.45=69.12+7.74=7.32+4.57=90.9-31.5=
7.29+5.99=11.09+8.42=6.81-0.66=80.8+4.06=
9.29+0.74=17.18+1.68=7.02+2.89=91.4+3.9=
9.18-2.51=95.6+2.56=9.52-0.27=57.32-4.32=
一、口算。
8.2+0.8=6.4+8.4=74.3-6=0.66+0.36=
8.2-0.6=7+2.2=9.9+0.4=0.78-0.43=
2.7+0.4=1+5.9=88.7-5=0.97-0.48=
7.7+0.7=7.9-1.6=7.1-2=0.62-0.02=
4-0.8=1.3+9=23.4-1=0.62-0.02=
二、笔算。
7.77+0.27=47.87+6.79=8.24+6.66=98.3+49.8=
8.25-6.47=68.77-6.19=7.08-0.49=23.33+1.45=
9.11-0.53=98.93+5.91=7.27+4.05=83.8-47.4=
8.03+2.78=27.24-1.42=8.08+0.81=92.18+7.2=
一、口算。
2.3-0.5=2+6.6=61.5-3=0.87-0.41=
2.5-0.5=6.1+2=7.1-3.8=0.98-0.19=
5.4+0.3=7.3+8.9=75.4+9=0.76+0.16=
2.8-0.6=5.4-0.2=7.4-4=0.64+0.15=
2.2+0.6=3.4+3.3=54.8+7=0.64-0.18=
二、笔算。
2.52+0.6=29.54-9.47=7.23-4.13=93.3-47.4=
9.69-6.31=51.22-1.88=5.91-0.23=44.92+8.62=
3.46-0.61=76.81-2.83=9.21-2.1=80.7+34.3=
7.45-3.21=60.67-1.96=4.77-0.59=60.4+6.33=
一、口算。
7.5+0.9=7+6=78.2-4=0.81-0.45=
1.7+0.6=9.1-4=9.4+0.2=0.77-0.23=
5.6+0.7=5.3+2.7=28.5+7=0.58-0.02=
4.6-0.2=6.8-3.8=7.5+0.2=0.91+0.18=
8-0.7=4.4+5.7=35.4-7=0.5-0.46=
二、笔算。
3.83-0.17=19.41+2.31=8.55-6.39=58.3+19.8=
8.12+3.59=86.19+2.9=4.26-0.9=67.64+6.52=
3.73-0.72=19.85-7.76=7.42+3.87=97.3+13.1=
8.02+2.03=72.42-5.28=8.69-0.53=41.17-2.61=
一、口算。
2.9+0.7=5.2+1=55.5+3=0.67+0.01=
7-0.6=8.5+2.5=8.5+5.8=0.72-0.33=
3.5-0.9=7.7+5.7=54.6+1=0.64+0.46=
7.1+0.4=6.3-2.9=7.5-1.2=0.94-0.08=
2.1-0.5=0.6+0.1=94.7-1=0.9-0.15=
二、笔算。
7.57-0.27=15.78+3.02=8.94+3.22=92+12.3=
7.43+2.64=56.94+7.56=6.4-0.81=82-3.49=
5.07+0.16=37.67-7.5=8.34+6.58=56-2.7=
7.15-4.38=48.67+3.31=9.39-0.14=51.7-1.5=
一、口算。
1+0.1=6.2+6.9=44.7+7=0.9+0.46=
5.7-0.7=8.7-4.5=9.2-3.8=0.81+0.04=
6.4-0.1=3.9+0.7=69.4-6=0.57+0.26=
8.8-0.5=9.7+2.1=8.2-0.5=0.95+0.43=
7.2-0.2=3.2+8.8=69.5-7=0.87-0.1=
二、笔算。
3.34+0.58=82.38-3.16=7.76+3.13=81.4-27.1=
7.17+4.67=68.91+4.86=1.31-0.69=12.63-5.52=
1.94+0.74=17.38-9.66=7.64-4.57=83.4-18.4=
8.69+4.93=39.92-6.44=3.22+0.72=97.14-5.2=
一、口算。
3.5+0.8=2.7+9.2=16.9+4=0.74+0.38=
5.1+0.7=9.6+2.6=7.8+3.3=0.56+0.33=
8.3-0.5=4.3+7.8=48.8+6=0.97+0.47=
1.4-0.6=8.6+0.6=8.3+5.6=0.8+0.39=
4-0.9=6.2+4.6=44.4-8=0.5+0.35=
二、笔算。
1.99-0.1=39.93-3.6=7.49-2.11=57.4+32.7=
8.62-2.67=40.27-9.98=2.23+0.19=85.42+2.99=
9.28-0.44=62.76+7.99=9.6-2.99=51.9+25.7=
7.05+3.06=51.51-7.63=3.11-0.49=84.06+3.14=
一、口算。
8.4+0.9=2.1+2.7=32.3-3=0.92-0.35=
5-0.5=6.5+4.4=7.6+3.2=0.8-0.12=
6.6-0.9=9.5+9=58.9-4=0.53+0.01=
7.7+0.6=6+3.6=9.6-3.5=0.61+0.47=
6.1+0.3=1.6+1.2=16.2+4=0.94+0.41=
二、笔算。
6.74+0.98=99.75+7.08=8.07+4.25=93.8-10.4=
8.64-5.03=16.45+4.78=6.56+0.9=75.08+4.83=
8.35-0.96=61.11+3.94=9.61+4.38=95.3-42.7=
9.02+6.51=37.18+1.2=2-0.39=20.45-2.83=
一、口算。
7.3+0.8=8.1+3=64.5-5=0.69-0.47=
3.3+0.5=9.8-1.4=9.5+0.9=0.83-0.4=
5.2-0.8=8+4.1=65.1-3=0.91-0.15=
8+0.8=7.6-3.4=8+0.2=0.87-0.49=
4-0.2=9.7+0.5=92.9-9=0.5-0.4=
二、笔算。
8.49-0.12=68.56-5.8=9.47-5.45=67.8-11.3=
9.43-4.22=70.94-7.77=4.26+0.39=90.49+7.8=
7.25-0.37=35.29+7.81=8.32+2.26=51.4+13.9=
8.69-5.97=92.09+7.6=7.51+0.28=41.41+9.55=
一、口算。
7.7-0.1=3+4.8=11.8-7=0.62+0.12=
4.9-0.7=5.1-1.9=7-5.4=0.93+0.02=
5.8-0.7=1.8+1.3=68.3+6=0.87+0.43=
2.5-0.6=8-4.8=7.8+4.9=0.94-0.32=
7.7+0.3=4.4+6=18.9+4=0.73+0.02=
二、笔算。
7.12+0.79=57.15+4.15=9.43-3.94=59.1+49.3=
7.71-6.14=49.07-8.2=6.34+0.69=37.7+8.58=
1.48-0.89=59.49+3.63=9.59+1.16=93.1-26.1=
9.52-1.67=59.03+6.4=1.35-0.59=86.32+7.45=
一、口算。
7.1-0.5=2.9+9.6=79.8-9=0.58-0.08=
6.9+0.9=5.5+4.3=6.6+4.4=0.79-0.35=
5-0.2=4.9+4.9=74.5-9=0.86-0.37=
7.8-0.1=8.3-0.3=8.5-4.8=0.59-0.19=
2.4-0.1=3.6+3.2=81.7+5=0.57+0.27=
二、笔算。
5.77-0.97=50.62+9.38=8.57-6.95=55.6+48.9=
8.3+2.52=97.17-9.56=7.29+0.83=61.65-7.38=
5.11+0.7=23.92-4.25=7.84+1.7=94.1-4.3=
7.49-5.69=84.7-3.78=6.19-0.73=41.11-1.81=
一、口算。
7.1-0.8=4+9.6=69.9-9=0.75+0.3=
7.8+0.6=6.9+0.8=9.9-4.2=0.95-0.16=
8.5+0.3=2.1+2.2=57.9-8=0.82+0.36=
2.7+0.5=5.8+4.8=6.5-3.4=0.63+0.24=
8.1-0.6=6+5=63.7-6=0.57-0.41=
二、笔算。
6.21-0.05=68.75+2.32=8.53-6.89=91.1-16.7=
8.88-3.27=33.38+1.02=5.71-0.56=84.61+7.04=
7.59+0.34=18.25-4.01=8.91+6.33=74.4+6.1=
7.98-4.58=87.81-1.08=2.54+0.12=92.54-7.3=
一、口算。
7-0.9=2.1+1.2=20.8+2=0.91+0.18=
6-0.6=5.1-4.5=9.7+5.6=0.65+0.16=
1.3+0.2=5.6+2.2=49.5+2=0.61-0.25=
8.2-0.7=9.2-0.5=7.3-0.5=0.77+0.14=
7.6+0.2=6.6+3.6=16.6-4=0.57-0.37=
二、笔算。
7.14-0.92=49.16+9.21=9.02+6.82=98-32.4=
9.69-5.11=80.14+7.57=1.75-0.9=28.05+6.22=
4.49+0.3=18.48+5.94=7.69-5.83=95.7-9.3=
8.23+5.65=74.76-7.39=2.3-0.96=81.66+2.41=
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