人教版四年级数学下册小数加减法综合练习题68.docx
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人教版四年级数学下册小数加减法综合练习题68.docx
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人教版四年级数学下册小数加减法综合练习题68
一、口算。
1.9+0.2=7.9+5.8=65.3-2=0.91-0.44=
2.2-0.4=8.8+4.1=8.9+1.3=0.57+0.05=
4.2+0.8=3.1+7.9=45.1+8=0.69-0.37=
3.6+0.4=6+0.6=8.6+4=0.78-0.47=
4.2-0.6=6.3+2.3=75.3-7=0.94-0.43=
二、笔算。
1.84-0.15=91.12-7.07=9.97+6.59=90.9+37.5=
8.48-4.02=63.21-2.27=5.33+0.4=68.44+7.55=
2.26+0.96=75.48+9.44=7.51-4.34=55.9+18.1=
8.86-4.78=77.67-6.76=3.03+0.51=29.42-3.39=
一、口算。
3.7+0.1=2.2+3.6=72.2+2=0.96-0.03=
8.3+0.7=7.8+3.6=7.1+0.1=0.75-0.43=
1.8+0.2=3.1+1.8=88.8-1=0.67-0.39=
3.6+0.6=9.5-4=9.7+0.5=0.88+0.07=
6.3-0.5=1.3+6.6=78.8+4=0.95+0.48=
二、笔算。
2.26+0.92=81.61+2.59=7.27-1.81=51.8-43.8=
7.8-5.94=28.07-8.39=9.11+0.1=91.3-7.75=
3.51+0.73=24.14-3.7=7.83+5.79=54.5-32.9=
8.37+4.77=79.45+2.2=1.33-0.55=62.04+6.99=
一、口算。
4.9-0.9=1.7+6.1=12.1-5=0.67+0.03=
3.8+0.2=8.8+0.1=9-2.7=0.88-0.06=
7.7-0.4=0.6+5.2=36.8-9=0.53-0.05=
4-0.4=8.7+0.2=7.3-4.3=0.77-0.24=
1.6-0.5=1.8+8.3=10.4+3=0.84+0.04=
二、笔算。
3.06-0.82=21.26+7.06=9.22-5.79=67-42.4=
7.67+3.06=52.33-6.71=4.99-0.55=62.96+9=
9.67+0.54=39.17-1.34=9.95+6.16=63.2-49.1=
7.32-5.57=35.13-3.38=8.84-0.32=73.3-6.34=
一、口算。
7.1+0.1=2.5+2=26.6+7=0.91-0.34=
5.5+0.7=8.5+4=7.5+5.6=0.5+0.47=
9-0.3=3.6+4.1=96.6-8=0.89-0.4=
8.4+0.4=7.1+0.9=9.9+2.3=0.61+0.01=
7.2+0.8=0.5+6.8=77.5+5=0.84+0.32=
二、笔算。
9.71-0.18=22.97-1.95=8.48+4.2=89.2-14.2=
9.88+3.25=24.91-7.69=4.13+0.99=26.25-3.18=
4.38-0.6=30.92+4.96=8.2-1.07=88.7-34.3=
8.44-5.51=57.52+3.29=1.44+0.48=97.91+5.19=
一、口算。
6+0.5=1.1+7.9=66.2-9=0.8+0.05=
5.3+0.6=7.2+2.7=8.5+3.9=0.58+0.41=
6.6-0.3=4.2+5=33.5-3=0.63-0.24=
2.1+0.6=7.2+0.3=8.1+5.4=0.53-0.3=
6.2+0.2=5.8+9.8=82.2-2=0.8-0.45=
二、笔算。
2.05-0.73=66.63+2.72=8.02+4.6=78.8-35.9=
8.37-3.45=20.54+8.91=5.27-0.47=54.35-6.26=
9.87+0.71=86.46-5.86=8.01+5.74=94.5-2.1=
9.6-1.52=33.12-1.04=5.22-0.81=41.39-5.59=
一、口算。
1.9+0.3=6.8+2.9=53.6-3=0.99+0.08=
6.5+0.6=5.1+2.9=9.3-5.8=0.58-0.47=
9-0.1=9.3+0.8=77.2-4=0.5+0.49=
3.7+0.1=8.5+1.8=9.7-2.8=0.68-0.16=
8.8-0.3=8.7+7.3=99.9-7=0.84+0.01=
二、笔算。
4.98-0.32=11.06-4.94=7.76+1.17=65+14=
9.55-6.51=65.84+1.51=7.21-0.63=13.03-6.98=
3.55-0.59=93.27+1.71=9.17-4.92=74.4-2.6=
7.87+1.99=83.4-1.18=2.43-0.92=36.82-2.88=
一、口算。
7.8-0.7=0.6+6.9=95.1+2=0.71+0.41=
7.8+0.5=9.7-4.2=9.6+5.6=0.88+0.24=
8.6-0.4=7.4+3=54.2-8=0.74+0.37=
1.4+0.5=9.5+0.5=7.2-2.7=0.82-0.23=
2.5+0.2=2.2+8.1=93.9+4=0.52+0.2=
二、笔算。
3.94+0.41=90.8+5.13=7.58-1.17=93.2-27.2=
7.92+1.52=46.29-6.84=1.47-0.57=47.23+7.17=
8.33+0.23=77.57+8.13=7.95+1.28=99.2-46.3=
7.92-3.71=85.21+4.37=9.79-0.83=94.2+2.8=
一、口算。
3.3-0.9=8.9+3.8=98.5+8=0.7-0.03=
6.4-0.5=6.6-1.2=6.1-0.1=0.51+0.07=
6.1-0.9=0.8+4.3=61.5+3=0.87+0.13=
4.6-0.4=7.8+3.8=6.5-4.3=0.54+0.13=
7.3+0.3=2+0.7=33.8+7=0.92-0.17=
二、笔算。
9.35-0.94=85.29+9.78=8.09+6.95=76.9-40.7=
7.73+5.82=80.05+3.46=5.47-0.11=40.97+8.81=
9.3-0.41=98.78+8.35=7.15+1.02=87.6+9.5=
8.22-5.58=42.69-3.43=5.19+0.03=12.79+2.06=
一、口算。
3.8+0.4=6+1.1=54.9-5=0.72+0.3=
5.2+0.6=7.8+1.1=7.4+1=0.77-0.06=
8+0.3=8.2+8.6=13.1-7=0.77-0.16=
5.5+0.2=7.4-1.9=7.5+1=0.6+0.34=
4.7+0.3=1.5+1.8=39.1-6=0.59-0.04=
二、笔算。
3.05-0.19=11.83-7.36=8.22-4.84=89.4-14.2=
8.88+1.26=83.64-8.66=9.14-0.57=56.53-8.66=
8.33-0.97=38.87-6.83=9.59-3.66=57.8-14.9=
9.37+1.52=91.25-2.27=7.25+0.03=21.79+8.1=
一、口算。
7.5-0.1=7.6+9.3=36.7+4=0.91-0.21=
6+0.9=9.6-2.5=6.2-5=0.77+0.34=
3.4-0.1=1.9+6.4=57.2-2=0.64+0.18=
1.2-0.4=5.9-4.1=6.8-5.1=0.55+0.19=
8.5-0.1=7.1+1.2=76.1+3=0.98+0.49=
二、笔算。
5.96-0.26=92.7+5.25=7.29+5.93=83+28.2=
8.91-3.63=51.48+9.76=2.75+0.94=40.74+4.56=
5.26-0.65=32.62-9.67=9.61+5.88=95.2-28.6=
8.79-2.08=22.83-6.99=4.18-0.2=17.19+9.12=
一、口算。
5.5-0.4=2.7+5.7=30.4-6=0.97+0.35=
3.1-0.4=6.7+3=9+3.9=0.52-0.41=
6.6-0.9=5.2+4.2=96.7-9=0.77+0.03=
3.3+0.1=7.7-2.6=8.7-3.7=0.69-0.1=
6.3-0.2=1.3+6.9=77.9+7=0.51-0.19=
二、笔算。
9.34-0.54=13.52+7.31=7.06+5.76=60.9+12.6=
9.28+1.05=18.1-3.65=9.65-0.25=97.55-9.9=
3.33+0.44=56.91-3.74=8.27-2.42=72.5-35.3=
7.78+4.97=20.79-3.8=8.91+0.93=48.09+7.38=
一、口算。
4.4+0.6=0.5+3=94.8-5=0.63+0.22=
2.2-0.3=9.3-2.3=7.3-2.8=0.74-0.3=
1.2+0.8=6.9+8=83.4+9=0.86-0.22=
5.1-0.6=7+0.4=6.5-2.8=0.64-0.34=
5.5-0.7=7.2+8.1=60.2-1=0.88+0.4=
二、笔算。
6.74+0.8=30.28+2.47=9.61-1.15=80.6+42.3=
7.58+6.48=50.35+3.68=5.38-0.11=90.63-3.66=
5.48-0.29=45.91-2.84=7.19-4.16=94.4+30.9=
8.78+5.42=18.29+5.39=8.37-0.44=70.2+9.89=
一、口算。
4.3-0.6=5.1+2.1=61.9-7=0.98-0.35=
4.4+0.1=7.3-1.1=8.3+0.5=0.89-0.46=
4.1-0.4=8.9+8.6=78.2-2=0.65+0.43=
1.9-0.6=7.2+3.9=6.4+1.1=0.74+0.38=
7.6-0.5=4+9.3=57.1-1=0.62+0.03=
二、笔算。
3.7+0.13=32.88+7.85=8.44+6.24=81.2-29.5=
8.13-6.69=46.98-3.76=8.58-0.76=37.83+9.38=
6.06+0.17=33.14-8.5=8.29-3.08=97.2-39.9=
7.49+1.83=63.04-4.34=5.3-0.42=56.27+7.9=
一、口算。
3.5+0.7=1.2+1=45.8+5=0.75+0.46=
3.4-0.1=7.6-1.5=8-5.5=0.8-0.34=
6.1+0.2=8.2+7.4=13.5+4=0.92-0.02=
8.5+0.9=6.5-0.2=6.2+0.4=0.82-0.36=
7.2-0.9=8.5+5.3=68.8-2=0.92-0.2=
二、笔算。
7.5+0.58=63.08-7.68=9.93+4.98=83.3-32.6=
8+4.11=97.13-1.31=2.06+0.36=65.47-9.95=
9.31+0.03=43.69+7.51=7.82-5.73=83.9+39.6=
9.29-2.37=11.09+2.29=8.68-0.05=22.99+4.15=
一、口算。
4.7-0.2=7.5+4.9=65.2-4=0.98+0.21=
1.7+0.6=6.5-1.1=9.2+1.8=0.76-0.46=
4.1+0.5=9.7+9.2=87.3+3=0.5+0.08=
3.6-0.3=6.1-4.8=7.5-2=0.97+0.17=
6+0.9=3.6+1.5=61.1-2=0.88+0.11=
二、笔算。
7.2-0.59=69.92-8.3=7.66+6.49=99.4-5.2=
8.52+6.82=34.87-7.82=8.43+0.04=36.36+9.15=
5.87-0.81=95.05-6.03=8.69-6.47=99.6+34=
8.61-1.37=41.75-4.96=6.15-0.61=55.75-7.04=
一、口算。
5.1+0.5=1.7+3.9=73.6-9=0.89-0.1=
5.7-0.7=6.5+3.1=7.3+2.2=0.64-0.45=
9+0.8=6.3+2.6=85.8-7=0.95+0.27=
3.4+0.5=6-0.3=6.7-3.7=0.76-0.38=
5-0.2=9+7.7=30.2-7=0.78-0.07=
二、笔算。
4.3+0.84=53.9+4.67=9.65-4.03=94.6+10=
7.78-5.55=77.04-7.5=2.34-0.09=77.47+3=
8.45-0.18=74.43+2.6=8.29+1.69=50.6-5=
7.64+3.8=75.4-7.59=8.24+0.68=75.18+5.23=
一、口算。
3.8-0.7=4.8+2.2=33.4+1=0.53+0.16=
7.5+0.1=5-0.8=6.9+2.6=0.59+0.12=
1.5-0.8=6.8+3.8=60.1-2=0.58-0.23=
6.9-0.7=7+4.5=7.2+2.7=0.91-0.41=
2-0.6=8.1+8.6=95.7-3=0.72-0.35=
二、笔算。
1.35-0.32=73.81+2.77=9.16+3.05=90.4+41.2=
7.87-5.07=34.25+3.4=6.94-0.12=34.26+4.38=
9.4-0.71=56.98-4.04=8.19+2.44=56.1-6.8=
8.11-4.94=18.02+3.13=1.96-0.41=94.19-4.67=
一、口算。
8-0.6=6.8+9.7=55.7+6=0.81+0.44=
3.2-0.6=6.7-2.6=6.1-5.4=0.64+0.02=
6.6-0.6=7.9+5.5=77.2-6=0.55-0.19=
3.8+0.1=7.3-1.2=6.5+5.9=0.55+0.4=
5.9+0.7=0.2+0.3=48.3-6=0.84+0.08=
二、笔算。
1.07-0.45=82.03-4.93=9.77-4.87=76.2+29.7=
8.97-5.2=79.56-2.31=1.36+0.26=99.87+4.13=
9.38+0.06=49.15+6.17=9.96-5.56=98.3+16.6=
7.99-1.92=65.38-1.62=4.93-0.41=56.23-9.35=
一、口算。
3.6+0.4=9.6+3.2=91.5-5=0.68-0.37=
8.2-0.4=5.4-0.8=6.7+4=0.75+0.08=
2.8-0.8=0.7+3.5=10.3+9=0.64-0.12=
3.1+0.5=6.3-2.8=6.7+0.5=0.77+0.43=
1.9-0.9=3.9+2.7=22.3+1=0.59+0.2=
二、笔算。
7.14-0.85=26.79-9.08=7.13+3.06=84.9+10.4=
7.75+6.33=40.76-5.87=9.31+0.61=65.02-2.97=
4.91-0.57=50.33+3.45=9.07+1.57=55.5+41.4=
8.16+3.08=52.47-4.65=6.23+0.66=65.08-6.28=
一、口算。
2.1+0.5=5.7+6.3=55.4+5=0.92-0.37=
5.6+0.5=5.3+4.6=9.5-0.9=0.63-0.35=
5.3-0.1=6.9+3.3=59.5-7=0.57+0.23=
8.9+0.7=6.6-0.5=8.9+2.6=0.92+0.15=
7.7+0.5=3+3=67.5-3=0.77-0.14=
二、笔算。
5.72+0.39=31.62+5.34=8.3-4.62=84.2+45.5=
8.65-3.62=43.72-6.64=4.44+0.65=93.96-9.8=
2.26-0.63=93.87+4.81=8.91-1.89=65+29.5=
8.98-5.6=13.05-7.92=1.04+0.12=18+6.48=
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