人教版四年级数学下册小数加减法综合练习题185.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185.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185
一、口算。
2.8+0.8=1.5+7.4=84.1+9=0.73+0.42=
6.2+0.6=5.1+0.6=7.6+3.9=0.69+0.31=
3.4-0.2=5.3+6.8=19.8-6=0.81-0.35=
1.2-0.2=9.1-1.6=9.6+2.5=0.72+0.27=
6.6-0.9=3.9+3.2=26.1+6=0.82-0.43=
二、笔算。
2.75+0.49=36.48+9.56=9.77+2.81=93.1-4.6=
9.7+6.47=91.46+4.73=2.29-0.62=56.15+6.22=
3.54+0.45=39.3+4.94=8.05-6.39=68.1-42.3=
7.42-3.61=44.01+3.32=3.88+0.76=23.34-4.64=
一、口算。
2.9-0.1=0.8+9.7=23.9+6=0.51+0.49=
1.7-0.1=8.6+0.2=9.9-1.1=0.66+0.49=
2-0.8=8.9+5.7=55.2-4=0.86-0.21=
2.4-0.2=6-0.7=6.1-4.1=0.65-0.27=
7.2+0.9=4.8+3.5=23.4+1=0.57+0.16=
二、笔算。
8.12-0.45=47.25-7.28=8.13+1.28=80.9+12.8=
7.57-4.64=30.5+4.21=8.16-0.58=13.26+3.26=
8.09+0.45=38.45-3.65=7.3-4.17=65.7-16.4=
8.27-3.43=96.95+5.34=7.93+0.89=14.23-8.91=
一、口算。
3-0.5=8.2+3.8=83.1-6=0.53+0.48=
9+0.3=8.9+2.5=6+1.5=0.85-0.09=
4.3-0.3=4.1+2.8=32.3-1=0.69+0.25=
8.9-0.1=9.1+1.5=7.9+1.4=0.89-0.31=
4.2+0.1=2.9+1=11.2+2=0.6+0.39=
二、笔算。
5.84+0.53=71.81+9.58=7.34-1.41=92.7-46.8=
8.13-3.93=71.92-6.6=8.17-0.92=37.07-3.42=
7.83-0.08=90.34+1.24=9.13+5.51=64.2+7=
7.67-2.49=68.94-5.6=9.47+0.15=78.53-3.57=
一、口算。
5+0.2=6.4+9.3=97.4+8=0.59-0.28=
3.4+0.1=7.3+3.4=7.1-3.3=0.67-0.3=
4.9+0.5=3.9+7.4=36.3-9=0.62-0.13=
5.6+0.6=9.2-3.7=6.5+3=0.7-0.13=
6.4+0.6=9.8+3.5=77.7+2=0.65+0.08=
二、笔算。
5.17+0.15=14.38+5.02=8.46-5.28=81.8-35.1=
9.74+3.61=75.57-2.59=7.65-0.16=36.34+3.97=
2.99-0.85=23.51+1.76=7.38+3.85=83.5-47.7=
9.03-1.48=91.64-2.57=6.62-0.23=52.23-9.82=
一、口算。
5.8-0.5=2.5+8.4=34.7-3=0.62-0.34=
1.4-0.9=6.9-1.7=8.5-3.8=0.63-0.07=
2.8-0.9=5.2+7.6=89.7+9=0.9-0.05=
2.1+0.7=5.5-0.1=6.6+2.6=0.74+0.09=
5-0.1=3.8+0.5=31.4-6=0.65+0.07=
二、笔算。
7.56+0.36=80.38-8.64=7.23+3.74=54.1+8.8=
9.89+4.02=53.64+8.38=6.62-0.42=83.24-3.59=
8.97-0.75=19.18+4.45=8.85+2.47=96-31.6=
9.37+3.19=29.54-2.73=2.97+0.49=62.04+9.61=
一、口算。
3.8-0.5=5.7+5.5=19.3-7=0.85-0.34=
7.9+0.7=9.4-2.7=7.5+2.2=0.88+0.22=
8.8-0.1=7.8+1.8=20.7+9=0.55-0.13=
5.9+0.7=9.1-0.4=9.8-2=0.73-0.26=
8.1-0.4=8.6+7.2=42.5+4=0.56-0.35=
二、笔算。
4.05+0.3=68.71-5.45=7.22-2.47=95.7-30.7=
7.3+4.26=60.13-6.32=4.4+0.72=87.43-8.25=
4.66+0.15=55.99-1.36=8.97-6.63=52.9-45.2=
9.59+4.37=23.41+3.77=7.24+0.56=62.02+6.55=
一、口算。
7.9-0.6=0.2+4.1=65.7+5=0.59+0.09=
2.1-0.8=7.4+2.3=7.1-1.9=0.92+0.26=
1.3-0.7=1.7+9.9=88.7-4=0.76-0.01=
1+0.5=9.8-1=9.6+0.1=0.56+0.4=
2.2-0.6=0.9+8.4=59.1-9=0.5-0.16=
二、笔算。
3.35+0.27=22.1+3.07=9.02-2.8=54.4-12.3=
9.83+4.47=15.1-2.17=9.48+0.87=85.25+8.42=
1.53+0.24=39.01-7.23=7.73+1.14=64.3-39.9=
7.53-5.23=46.87-8.32=1.32+0.15=66.74+6.53=
一、口算。
7.9-0.6=0.2+8=99.7+8=0.7-0.21=
4.6+0.2=7.3-4.4=9.5-5.6=0.63-0.25=
6.8+0.6=8.5+0.7=69.7+5=0.92-0.15=
4.7+0.9=8.1-3.4=9.3+3.1=0.51-0.33=
8.8+0.2=7.3+1.4=56.5+1=0.62+0.43=
二、笔算。
4.26-0.7=62.19-3.42=7.93-3.58=75.2+5.2=
7.89+3.37=96.16+6.46=9.6-0.35=94.32+7.88=
5.03+0.97=57.31+7.02=9.41+1.28=78.8-20.4=
8.51-6.42=44.54+5.73=6.14-0.91=31.68+7.55=
一、口算。
6.6+0.9=4.4+1.6=88.7-7=0.57+0.37=
3.4+0.2=6.4-0.5=8.9+2.9=0.66-0.27=
4.9+0.2=0.8+3.5=18.4+8=0.81+0.28=
1.6-0.8=7.5-2.7=9-0.1=0.64+0.26=
1.7-0.5=6.7+2.5=94.1+3=0.84+0.27=
二、笔算。
5.19-0.9=37.74-2.61=7.19+6.49=93+2.8=
8.57-1.55=50.45-9.33=7.24-0.53=87.53-8.67=
4.8-0.81=54.76+8.65=7.78-2.16=70.8+1.4=
7.31+4.8=71.78+3.13=5.48-0.28=36.06-3.85=
一、口算。
6.7-0.5=0.5+4.2=77.4+7=0.55-0.03=
2.4+0.5=5.2+3.6=7.8-4=0.76-0.39=
7.1-0.8=8.6+8.7=31.5-6=0.81-0.25=
1.9+0.5=9.8-4.4=7.2+5.8=0.83+0.16=
8.3+0.6=4.9+1.7=39.5-3=0.68+0.18=
二、笔算。
3.23+0.09=38.59+4.66=7.94-5.39=93.3+22.1=
9.95+1.94=29.45+1.65=9.64-0.32=88.11+9.07=
3.88-0.27=56.96+1.82=9.19+1.71=68.9+8.9=
7.22-2.69=85.68-4.19=7.78-0.47=60.02+7.04=
一、口算。
6.4-0.3=5.8+4.7=61.4-6=0.93+0.27=
8.2-0.4=9.8+0.1=6.4-4.7=0.8+0.27=
1.7+0.7=8.6+0.1=79.8-7=0.79-0.12=
5.2-0.2=7.4+2.2=8.4+5.8=0.75-0.24=
4.8-0.8=4.7+3.3=98.4+2=0.98+0.35=
二、笔算。
2.79+0.47=40.5+2.87=8.87+3.6=97.2-36.6=
7.53-4.49=30.39-3.72=8.62-0.16=78.92+8.18=
7.77+0.99=39.01+3.24=8.86-2.46=50.6-14.7=
8.06+5.36=94.78-7.93=1.53-0.66=80.82+7.42=
一、口算。
2.8+0.3=2.8+6.9=63.7-5=0.64-0.2=
8.3+0.5=9.1+1.3=9.8+3.6=0.51+0.09=
7.2+0.7=4.5+3.2=54.4+3=0.89-0.07=
1.7-0.3=6.5-4.1=8.5-0.7=0.56+0.24=
6.5-0.8=4.8+7.9=83.8-6=0.99-0.29=
二、笔算。
5.73-0.73=85.75-9.89=9.82+1.01=61.1+1=
7.77-3.4=36.6+1.59=3.67-0.18=33.36-8.74=
4.5-0.52=38.04-9.03=7.12-4.2=79.2-1.1=
9.69+6.55=56.35-7.61=8.16-0.37=73.89-9.96=
一、口算。
4.3+0.3=1.9+0.5=92.8-6=0.86+0.45=
3.3+0.7=6.8-1.6=7.8-2.4=0.93-0.15=
6.4-0.1=2.7+7.6=49.5-4=0.56-0.3=
6.5+0.1=5.4+1.6=6.4-4.6=0.71-0.24=
5.7-0.7=4.5+3.2=89.1-1=0.59+0.42=
二、笔算。
6-0.79=17.05+8.17=8.39-3.19=57.9+24.4=
8.34+4.29=97.14-3.27=5.75-0.36=96.15-3.74=
2.2+0.71=95.34+8.79=8.17-3.22=76.5+30.9=
9.62+4.35=99.02-4.58=5.37+0.86=43.46-5.23=
一、口算。
7.6+0.1=1.1+9.4=89.4-8=0.93-0.08=
7.9-0.7=7.2+0.5=8.3-2.6=0.99-0.4=
7.4+0.4=7+4.4=65.7-5=0.68+0.47=
5+0.6=6.4+1.9=7.2+2.8=0.56+0.43=
4.9+0.8=5.1+7.9=92.8+1=0.94+0.12=
二、笔算。
8.33-0.44=53.59-4.48=8.27+2.16=89.3+18.5=
7.22-2.34=38.68-6.09=1.87+0.17=79.72+6.45=
4.98+0.5=36.05+5.72=7.95+4.01=85.7-6.1=
8.53+1.21=32.7-3.84=9.14+0.93=10.48+4.07=
一、口算。
8-0.6=6.9+4.9=36.4-8=0.65+0.36=
7.3-0.6=8.7-2=7.9-5.2=0.72-0.23=
6.3+0.7=6.9+9.7=19.2+1=0.9-0.19=
8+0.1=9.2+3.5=7.9-2.1=0.93-0.04=
7.3-0.9=7.4+2.8=49.1-2=0.69-0.26=
二、笔算。
5.36+0.26=28.14-2.21=7.4-5.35=63.5+4.5=
7.6+3.66=59.34-4.96=5.7+0.87=22.17+8.78=
2.58+0.98=95.35+2.77=8.3+5.15=71.5-49.3=
8.03-2.27=88.02+2.74=5.16+0.51=68.24-8.46=
一、口算。
6.3+0.6=0.3+0.1=98.7+7=0.91+0.41=
4.9+0.8=6.3+3.4=9-1.7=0.9-0.09=
6.3-0.3=5.8+4.8=77.9-1=0.67+0.2=
2.6-0.8=7.6+1=8.6+0.5=0.72-0.19=
4-0.1=2.2+4.9=77.4+4=0.69+0.33=
二、笔算。
2.53+0.53=19.35+3.2=9.81+6.09=52.3-42.5=
9.26-4.29=90.84+6.86=6.81-0.28=85.57+5.25=
5.37+0.97=72.15-8.92=9.8-6.33=50.2+44.4=
7.3-5.69=18.89+6.26=9.87+0.06=69.63+5.54=
一、口算。
7.2+0.5=5.2+9.2=58.2-3=0.61-0.31=
4.2+0.3=8.2-3.3=7.9+3.2=0.79+0.23=
3.6-0.5=9.3+4.1=53.9-7=0.71+0.2=
7.3+0.3=6.2-2.1=6-3.1=0.57-0.3=
2.9+0.9=0.2+3.5=75.7+1=0.98-0.11=
二、笔算。
7.94-0.25=35.9-1.01=7.85-2.02=59.5+39.5=
9.63-1.53=60.72-3.95=7.21-0.11=25.39+9.88=
1.2-0.81=20.73-5.91=7.02+5.54=52.3-29.9=
9.16+4.59=98-8.13=6.28-0.27=78.01-9.49=
一、口算。
4.1+0.2=9.3+6.6=35.3+8=0.59+0.23=
6.6-0.5=8-0.8=7.8+4.5=0.71+0.38=
3.3+0.9=0.4+8.9=13.6+5=0.86-0.06=
4.8-0.8=7.3-4.9=8.6+5.6=0.68-0.1=
2.3-0.2=8.2+3.7=48.6+3=0.63+0.07=
二、笔算。
5.98+0.66=56.65-3.66=8.59+3.27=65-1.3=
9.73-6.7=46.26+4.21=4-0.66=86.2+5.04=
6.77+0.07=62.35-9.51=8.54-5.34=56-49.3=
8.32+6.89=70.57+8.36=8.06-0.76=28.99+8.46=
一、口算。
2.1+0.6=7.3+4.6=79.2+6=0.55+0.18=
4.4-0.8=5-3.9=9.5-4.8=0.65+0.19=
2.8-0.3=5.9+9.4=13.2+5=0.72+0.11=
5.4+0.7=8.9-2=6.8+4.9=0.93-0.02=
4-0.1=9.4+9.5=43.7-5=0.77-0.19=
二、笔算。
5.37+0.62=29.46+6.53=9.27+5.87=52.9+39.4=
7.63+3.11=70.15+7.58=7.03-0.56=62.19+3.52=
3.47+0.23=94.54+6.63=7.26+1.96=56.9+43.9=
9.43+6.33=29.09-8.88=8.8-0.8=96.48+1.8=
一、口算。
5.5-0.5=8.3+7=68.7+2=0.91+0.45=
7.8-0.2=8.8+2.1=7.5-3.3=0.59-0.38=
3.7+0.6=9.2+2.5=67.5-6=0.97+0.4=
4.5+0.5=8+2=9.2+0.8=0.69-0.39=
1.5-0.2=2.4+7.1=35.3+1=0.5-0.48=
二、笔算。
3.45+0.76=86.42-9.99=7.61+2.06=54.9-36.3=
9.41+6.08=34.91-4=7.17-0.49=11.65-9.23=
8.67+0.29=84.38-9.62=9.85+6.18=55.6-11.2=
8.39+2.42=73.51-2.51=5.38-0.75
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