人教版四年级数学下册小数加减法混合运算专项练习题163.docx
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人教版四年级数学下册小数加减法混合运算专项练习题163.docx
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人教版四年级数学下册小数加减法混合运算专项练习题163
一、口算。
6.3-0.8=9-2.3=0.83-0.15=2.3+0.8=
1.5-0.6=8.9+4.7=0.8-0.18=4.2-0.1=
3.7-0.9=6+1.5=0.81-0.32=7.5+0.2=
7.9+0.8=7.8+1.2=0.66-0.04=8.1-0.3=
7.8-0.1=7.1+0.8=0.78+0.42=8.1+0.9=
3.2-0.5=6.7-2.5=0.73-0.47=5.6+0.1=
5.5-0.3=6.5-2.2=0.84-0.45=6.4-0.2=
2.2+0.7=8.1-1.7=0.86+0.29=8.7+0.5=
二、混合运算。
0.6+0.12+3.49.1-0.76-3.2444.6-16.3-12.6
71.84+23.58+63.8171.21+14.92+34.917.35+1.04-2.49
90-(9.18+0.53)91.7+(19.3-8.2)6.4-2.23-4.05
一、口算。
8.1-0.3=8.8+4.6=0.73-0.23=7-0.9=
8-0.5=7.5+2.8=0.61+0.32=5.6+0.2=
3.9-0.8=8.3+1.9=0.77-0.23=1.2-0.9=
7.1-0.7=8.9-2=0.77+0.3=8.1+0.4=
3.6-0.1=7.8+0.3=0.73+0.06=7.3-0.7=
4.3+0.6=7.9-0.5=0.69+0.43=3.3-0.1=
8.7+0.6=6.6-0.9=0.86-0.3=3.5-0.7=
8.1+0.3=9-2.4=0.75+0.15=3.5-0.8=
二、混合运算。
0.85-0.16+8.69.3-0.67-1.3345-17.7-12.7
76.67+27.11+46.8576.88+38.61+43.888.76-7.15+1.53
60-(2.61-0.41)87.5+(18.2-9)6.69-2.91-3.4
一、口算。
7.7+0.3=6.9+2.6=0.71+0.15=8.4-0.2=
2.4-0.7=8.3-1.8=0.62+0.43=6+0.8=
2.6+0.6=8.9-4.6=0.72+0.46=4.9+0.1=
8.3+0.6=7.9+4.5=0.9+0.21=3.9+0.1=
3.5+0.1=6.5+3.9=0.67-0.21=3.5-0.4=
5.5+0.4=6.6+4.9=0.83-0.23=7.3+0.8=
5.6-0.9=7.4-2.8=0.74+0.33=5.5+0.4=
8.8-0.4=7.5+4.7=0.78-0.38=5.2-0.1=
二、混合运算。
0.67+0.27+3.78.3-0.73-3.2797.1+75.7-15.1
70.25-26.61+53.9689.98-24.33+50.897.9+4.58-2.54
60-(6.14-0.95)95+(19-4.3)8.87-4.09-2.22
一、口算。
2.3+0.6=6.9-0.9=0.72-0.49=5+0.8=
8.9-0.2=8.3-0.2=0.66-0.14=7.3-0.2=
4.6+0.7=8.5-3.4=0.74-0.38=5.1-0.6=
8.5-0.9=7.1-2.9=0.62-0.09=1.8-0.8=
7.7-0.2=6.5-2.6=0.82-0.06=6.8-0.3=
5.5+0.8=7.4-2.2=0.71+0.2=8.1-0.2=
8.7+0.5=7+2.4=0.78-0.07=3.6-0.9=
9-0.9=8.2+4.9=0.64-0.4=2.1+0.3=
二、混合运算。
0.62+0.34+8.57.7-0.85-3.1575.5+15+27.4
68.88+42.97+18.8663.81+45.58+61.975.89-4.18-1.39
50-(6.42+0.55)72.9+(10.5+7.1)9.86-1.72-7.51
一、口算。
7.3-0.7=6.2-4.1=0.8-0.24=8.5-0.6=
3.1+0.2=8.6+1.4=0.66+0.3=7.6-0.3=
5.4-0.6=7.7+4.1=0.84-0.1=8.2+0.9=
8.1+0.8=7.6+4.7=0.87+0.28=4.4-0.5=
2.4+0.7=7.6+2.6=0.83+0.22=8-0.5=
2.3-0.3=7.1-4.6=0.71-0.16=2.8-0.2=
4.1-0.1=7.3+1=0.81+0.43=4.2-0.4=
3.2-0.8=8.8+3.1=0.65-0.39=1.3-0.8=
二、混合运算。
0.82+0.19+8.27.8-0.2-1.851.6+21+24.7
69.54-41.22+20.7181.06-48.51+25.87.95-5.61+2.17
20-(3.53+0.32)95.7+(16.4+2.3)9.52-6.71+1.2
一、口算。
3.5-0.3=8.6-0.3=0.65-0.22=4+0.7=
8.6+0.8=8.2-3.6=0.67+0.27=8-0.3=
5.8-0.9=7.1-4=0.9+0.15=4.9-0.9=
7.9-0.6=6-1=0.83-0.24=4.8-0.6=
7.7-0.5=6.9+1.1=0.75-0.29=7-0.7=
6+0.7=7.6-3=0.75-0.22=7.2-0.3=
4+0.7=7.5-1.7=0.76-0.29=7.1+0.4=
6.5+0.5=6.2-2.5=0.72-0.17=1+0.7=
二、混合运算。
0.64+0.49+6.66.7-0.47-1.5374.4+44+22.1
75.26+37.32+86.9266.92+36.76+38.34.88+1.41-3.24
20-(6.69+0.53)99-(18.3-7.6)5.19-3+1.49
一、口算。
8.4+0.2=6.6+0.5=0.69-0.1=5.6+0.2=
5.5-0.6=6.4-2.6=0.84-0.01=5.4-0.4=
6.4-0.6=7.3-2.3=0.65-0.47=2.6+0.7=
5.2-0.7=8.3-0.7=0.7+0.13=5.4+0.5=
6.3+0.8=9+0.8=0.79+0.21=8.2-0.7=
7.7-0.8=8.8+3=0.8+0.07=7.8-0.1=
5.7-0.3=6.1-4.2=0.73+0.4=2.9+0.3=
8.3+0.6=7.1-0.7=0.76+0.42=8.1+0.1=
二、混合运算。
0.71+0.16+3.56.9-0.48-0.5281.2-15.4+30.1
72.37-34.55+45.1662.64+40.78+849.51+7.46-1.19
20-(6.77-0.41)78.2-(10-3.2)4.93-1.16-2.83
一、口算。
6.9-0.1=7.6-1=0.84-0.01=1.4+0.8=
1.9-0.8=6.2-4.7=0.79-0.17=7.8-0.9=
5+0.1=7+4=0.88+0.26=3.9-0.8=
2.1+0.7=8.3+1.8=0.73-0.02=8.5-0.2=
8.4-0.2=7.8+4.2=0.73-0.42=4.6+0.4=
4.4+0.1=7.6+3.8=0.79+0.38=5.6+0.2=
7.7-0.6=7.1-3=0.88-0.26=7.5+0.8=
1.3+0.6=8.9+4.2=0.69+0.09=8.3+0.2=
二、混合运算。
0.83+0.38+9.89.5-0.43-2.5742.6+21.2-13.7
70.07-37.15+91.7368.95-25.63+13.576.53-3.48+2.96
20-(2.21+0.79)99.8+(23.1-5.4)5.56+1.5-3.8
一、口算。
7.2+0.4=6.4-2.6=0.67-0.48=6+0.8=
2.7-0.5=7.7-3.1=0.88-0.11=7.3+0.3=
6.6+0.8=8+1.3=0.75-0.29=6.9-0.8=
1.9+0.5=7.1-4.2=0.6-0.11=2.3+0.5=
6.3+0.2=7.5-1.1=0.9-0.38=1.6-0.5=
8.2-0.1=7.1-1=0.9-0.24=8.3+0.7=
4.1+0.4=7.4+1=0.74+0.48=1.6+0.4=
2-0.9=8.6+4.1=0.63+0.08=6.1+0.7=
二、混合运算。
0.63+0.04+9.57.8-0.73-1.2737.6+11.8+20.1
77.74+19.44+9973.17-30.93+72.599.44+2.23-5.21
70-(2.96+0.67)99-(10.3-1.2)3.65+1.09+2.38
一、口算。
6.2+0.5=8.6-2=0.79+0.3=3.5-0.5=
5.5+0.9=6.6+1=0.83+0.07=6.2+0.8=
5.3+0.9=8.5-1.7=0.76-0.29=4.4+0.9=
6+0.3=6.7+1.8=0.79+0.46=5-0.5=
1.8+0.4=9-1.6=0.69+0.2=8.8+0.5=
5-0.6=6.9-4.9=0.8-0.35=3.1+0.8=
3.2+0.1=7.1-2.3=0.73-0.26=6.5+0.6=
7.7+0.8=8.4-4.5=0.81-0.25=2.6-0.9=
二、混合运算。
0.62-0.16+3.16.1-0.16-4.8487.4-10.9-47.5
77.65+21.31+54.2269.56-20.07+74.824.1-1.64-2.11
40-(4.51-0.23)71-(20.6-3.1)7.77-5.46-1.55
一、口算。
7.8-0.4=7.6-3.9=0.65+0.2=8.8-0.4=
8.8+0.9=6.2-0.7=0.69+0.38=7.2-0.5=
8.8-0.9=7-3.2=0.78+0.27=5.8+0.3=
1.5-0.9=7.8+4.3=0.66+0.05=4.6+0.6=
4.4+0.2=7+4.3=0.66-0.38=7.7+0.6=
3.1+0.6=8.5-1.5=0.86+0.31=5.9+0.7=
1.6+0.9=8.5+3.4=0.73-0.45=7.1-0.9=
1.1+0.5=7.7-0.2=0.61+0.05=3+0.5=
二、混合运算。
0.88+0.33+76.3-0.18-1.8285.2-13.5-53.6
83.02+47.86+35.1287.07+42.93+88.048.06-5.41+1.95
20-(7-0.83)94.6+(18-4.9)4.76+1.26-2.14
一、口算。
8.5+0.2=9+3.1=0.7-0.2=7.7+0.3=
2.7+0.7=6.4+2.9=0.82-0.16=6.4-0.6=
3.5+0.9=8.4+4.6=0.77+0.34=8.9-0.1=
8.8-0.8=7-0.2=0.74-0.45=1.7-0.9=
4.7+0.6=7.4-4.8=0.77-0.45=6.2-0.2=
4.2-0.6=9+3.6=0.83+0.37=4.3+0.1=
5.2-0.7=8.6+4=0.9+0.15=1.5-0.6=
4.6-0.1=6.2-1.5=0.75-0.15=2.9-0.4=
二、混合运算。
0.65+0.1+4.18.2-0.3-0.769.9-52.4-13.4
64.7+42.56+71.1560.08-28.62+60.956.98-1.88+2.47
30-(6.47-0.87)93.9+(18.3+3.3)4.64-1.1-1.8
一、口算。
4.5-0.9=7+4.4=0.6+0.1=4.8-0.3=
3.4+0.5=7.4+4.1=0.6-0.01=1.2+0.6=
1.1+0.2=6.7-2.8=0.83+0.15=8.4-0.8=
7.3-0.4=6.2-2.2=0.7-0.45=8-0.8=
7.2-0.5=6.5-1.5=0.71-0.06=6.8-0.9=
8.7-0.4=8.7-4=0.71-0.37=4.3+0.7=
2.9-0.3=8.5-1.6=0.7+0.22=1.1+0.3=
7.9-0.4=6.5+4.8=0.68-0.06=3.9-0.7=
二、混合运算。
0.85+0.19+8.26-0.36-3.6464+13.6-43.6
66.42-18.67+40.5860.57+37.9+88.775.77+1.52-2.56
40-(8.83-0.48)94.8+(28.3-7.7)5.45+2.7+1.09
一、口算。
8.9+0.1=7.3-3.7=0.64-0.24=7+0.1=
6.3+0.7=6.1-2.3=0.86+0.18=3.3+0.5=
1.1-0.8=8.2+1.8=0.87+0.06=3.3+0.3=
3.9+0.5=7.3+3.5=0.84-0.44=6.4-0.8=
2+0.7=8.8+3.8=0.66-0.08=7.5+0.2=
7.7-0.6=7.4+0.8=0.63+0.25=6.8-0.9=
8.9+0.7=7.5+3=0.66-0.15=3.6+0.2=
5.6+0.7=6.4+3.2=0.64-0.22=5.3+0.3=
二、混合运算。
0.64+0.48+7.75.6-0.49-0.5164.2+16.3+41.7
87.66+36.47+57.5280.57+35.81+81.87.2+2.29-3.2
60-(9.35-0.14)63.1-(27.5-6.8)9.29+2.88-6.3
一、口算。
5.2+0.1=7.4-4.6=0.73+0.26=6-0.8=
3.2+0.8=7.7-3.1=0.8+0.35=3.5-0.1=
8+0.5=8+0.2=0.79+0.45=9-0.7=
6.6+0.4=6.6-0.3=0.6-0.01=8.7-0.6=
7.4+0.8=6.4+2.7=0.78+0.22=6.3+0.6=
8+0.1=7.8-3.6=0.88-0.06=8.7-0.9=
8.4+0.2=6.6+4.5=0.88+0.16=3.4+0.3=
7.2-0.9=8.7-2.7=0.61+0.01=3.3-0.9=
二、混合运算。
0.76+0.11+7.48.4-0.57-0.4374.6-41.5-13.1
89.06+31.41+64.9366.84-11.78+78.717.26-4.42+2.2
70-(5.46+0.2)68.5-(16.7+3.4)3.54+1.34+2.02
一、口算。
7.3+0.3=8.8-1.5=0.66-0.38=7.2+0.3=
1.1-0.4=6.9-3=0.8+0.03=5.9-0.9=
4.7+0.3=6.3-2.2=0.81-0.07=7.7-0.5=
8.8+0.6=8.3+2.2=0.69-0.47=6.3+0.7=
2.2+0.7=8+4.8=0.71-0.39=7.5+0.3=
9-0.3=6+0.5=0.77-0.08=4.5-0.6=
1.8+0.6=8.4+2.9=0.86+0.12=1.3-0.4=
5.9+0.3=7.9+2.5=0.76+0.41=5.1+0.7=
二、混合运算。
0.81-0.32+9.39.2-0.56-4.4472.1-33.9+29
75.36+18.59+44.6884.15-35.86+94.845.21-2.67-1.37
80-(5.78+0.74)90.8+(16.1-3.2)7.98-1.5+6.08
一、口算。
3.1-0.5=8.1+3.8=0.7+0.35=6.9-0.1=
7.3+0.1=7.1+3.1=0.85-0.23=3+0.5=
2+0.8=6.3-2=0.65-0.28=4.6-0.8=
8.5-0.1=7.3-4.2=0.76-0.11=5+0.5=
6.1-0.2=6.4-2.7=0.78+0.41=1-0.3=
1.7-0.6=9+0.6=0.64-0.19=4-0.8=
7.8+0.1=8.7-1.5=0.84+0.1=3.6+0.4=
4.4+0.9=8.3+4.7=0.69+0.36=5.7-0.8=
二、混合运算。
0.76-0.07+8.77.1-0.25-1.7580.4+30.9+31.5
66.76+38.56+39.1775.22+10.65+25.84.65+1.34+1.32
20-(8.33-0.62)84.7-(13.2+5.3)7.28-4.77-1.47
一、口算。
8+0.4=9-3.1=0.79-0.4=6.4+0.1=
4.1-0.5=7.4-3.6=0.84-0.14=8.5+0.3=
4.5-0.3=6.3+4.5=0.75-0.24=4.7-0.6=
2.1+0.5=8+4.7=0.
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