人教版四年级数学下册小数加减法混合运算专项练习题11.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11.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11
一、口算。
6-0.8=8.2-2.9=0.9+0.15=6.2-0.1=
1.8+0.1=8.7+3.8=0.89+0.02=7.5+0.7=
6.6+0.3=6.2-3.6=0.9-0.31=1.6+0.5=
5.1+0.2=7.1-4=0.63+0.43=6.8+0.1=
7.6+0.2=6.6-1.7=0.73+0.39=6.2+0.4=
3.6-0.8=7.2+0.2=0.6+0.4=6.2+0.6=
4.1-0.6=8.8-1.1=0.85+0.19=5.1+0.4=
2.9-0.5=8.3-2.2=0.82+0.14=7.6-0.4=
二、混合运算。
0.66-0.25+0.55.9-0.21-0.7987.5-67.8+15
72.56-45.11+51.0286.47-21.02+37.357.23-1.53+4.05
40-(3.06+0.89)72+(11.4+1.2)3.85+1.96-1.26
一、口算。
4.1-0.4=7.7-2.6=0.89+0.08=2.5+0.5=
4.9+0.5=7.7+1.6=0.69-0.3=3.5-0.7=
8-0.9=7-4.5=0.83-0.08=7.9+0.3=
9-0.8=8.7+1.1=0.84-0.48=9-0.3=
5.4+0.2=7.1-2.2=0.61-0.33=3.4-0.9=
6.9-0.1=8.9+3.2=0.75-0.16=4.4-0.8=
8.1+0.1=8.7-3.9=0.89+0.23=1.3-0.9=
4.3-0.8=7.9-2.2=0.73+0.03=6.3+0.9=
二、混合运算。
0.73+0.2+8.66-0.38-0.6270.1+52.6+13.1
73.38-47.48+19.7386.32-47.29+28.928.73+2.72+1.73
30-(2.46-0.89)78.6-(22.8+5.3)5.12+3+1.73
一、口算。
7.4-0.7=9+3.6=0.85-0.14=6.5+0.2=
7.8-0.5=8.5+2.7=0.73+0.32=1.3-0.5=
3.7-0.7=8.9-2.4=0.74+0.41=6.7-0.4=
6.7-0.4=8.3-3.6=0.83-0.39=4.9-0.6=
4.3-0.5=8.9-4.3=0.86-0.16=2.4+0.4=
6.5+0.7=8.5-3.9=0.76-0.3=4.1+0.2=
3.7-0.4=8.4-4.9=0.67+0.25=2.1-0.4=
3.8+0.8=8.8-0.9=0.7-0.13=2.9-0.2=
二、混合运算。
0.61+0.04+8.17.5-0.49-1.5199.6+38.1+47.7
83.28+39.36+82.0483.85+26.51+11.837.14-5.63+1.22
60-(1.95+0.68)98.4+(24.9-6.9)6.8+3.03+1.61
一、口算。
6.6+0.6=6+3.1=0.9+0.1=2.7-0.4=
7.8-0.9=7-1.1=0.85+0.22=3.3-0.1=
1.6+0.5=9+3.9=0.84-0.35=1.3+0.5=
5.9+0.2=8.6-4.7=0.64-0.13=6.5+0.9=
5.3-0.4=9-3.2=0.86-0.28=2.3-0.1=
2.9+0.8=9-1.2=0.73-0.3=8.8-0.2=
1.4+0.7=6.1+0.5=0.88+0.18=1.1-0.9=
8.2+0.9=6.3-0.8=0.77-0.08=5.4+0.2=
二、混合运算。
0.89+0.39+6.66.8-0.71-4.2963.6+18.4-15.6
61.99+15.38+43.3182.13+45.13+55.757.45-4.12-1.79
30-(4.71+0.61)76-(11.4-6.7)7.16-3.96+2.31
一、口算。
3.4-0.2=6.1+0.2=0.64-0.12=3.8-0.5=
6.5+0.3=8.4+4.3=0.8-0.29=4.4-0.2=
7.2+0.9=8.2-1.2=0.75+0.11=6.9+0.9=
5.7+0.5=8.9+2.7=0.61+0.25=6.2-0.9=
8.5+0.5=7.5+2.5=0.75-0.11=4.1-0.1=
5.9+0.8=9-1.7=0.67-0.1=3.1-0.1=
4+0.7=6+0.1=0.64-0.02=7.1-0.4=
5.8-0.3=8.6-2.5=0.86+0.47=4.7-0.2=
二、混合运算。
0.73+0.32+8.37.7-0.51-0.4994.3+63.6-15.8
63.04+32.36+26.3179.97-27.6+64.543.66+1.59+1.57
20-(4.48-0.82)81.2-(18.5-7.7)6.3+3.66+1.38
一、口算。
8.3+0.9=7.8-2.7=0.79+0.09=7.1+0.4=
6.2-0.9=7.4+4=0.82-0.31=6.4-0.9=
6.9+0.1=6.2-3=0.65+0.49=7.3+0.9=
4.1+0.1=7.7-3.2=0.63-0.28=7.8+0.1=
6.8-0.9=8.9+1.9=0.77+0.25=8.9-0.8=
8.2+0.1=7.7-2=0.73+0.21=7.4+0.6=
2.9-0.7=7.2+4.7=0.61+0.39=8.5+0.3=
4.8-0.9=7.2+1.1=0.72+0.45=7.9-0.9=
二、混合运算。
0.8-0.14+65.1-0.76-0.2449.6-22.7+21.4
63.72+26.95+5360.87-11.08+41.095.63+2-2.78
80-(9.16+0.43)84.6-(22.3+1.7)9.41+4.59-2.43
一、口算。
2.1+0.1=7-2.1=0.8+0.41=9-0.9=
2.1+0.6=6.8-1.8=0.82+0.18=3.8-0.3=
4.4-0.6=7.8+3.1=0.74-0.41=3.2+0.4=
1.8-0.9=8.4+1.7=0.69-0.48=1.1+0.3=
8.7-0.5=7.4-3.7=0.65-0.01=2.3+0.6=
4.4+0.1=7.5+1.3=0.78-0.38=4.8+0.5=
5.4+0.9=8+1.1=0.64+0.09=5.2+0.9=
6.2-0.7=9-0.9=0.62+0.05=2.2+0.2=
二、混合运算。
0.64+0.14+3.56-0.48-0.5268.7-38.4+29.6
78.57+28.61+97.8160.12+40.66+78.567.73-3.17+3.66
50-(5.32-0.88)73.2+(29.3+5.6)9.65+1.38-3.98
一、口算。
1.5+0.4=7.5-2.7=0.83+0.41=7+0.2=
9+0.1=8.5+1=0.88+0.25=2.6+0.6=
6.8+0.1=8.8+4.9=0.6-0.35=8.6-0.1=
7.4+0.7=7.2-4.5=0.8-0.33=4.3+0.6=
6.8-0.7=8.9+3.7=0.75+0.08=2.6-0.3=
1+0.1=7.8-4.5=0.76+0.28=4.7+0.4=
6.4+0.1=7.3+0.1=0.86+0.05=1+0.7=
1.1-0.8=7.1-1.4=0.78-0.21=5.7+0.4=
二、混合运算。
0.88-0.07+6.66.4-0.1-2.996.6+56.4-30.4
67.9+43.79+29.2364.06-33.53+57.149.74+2.99-6.53
50-(7.86+0.33)74.5+(24.5+4.3)9.73+4.74+2.55
一、口算。
4.8-0.5=7+1.1=0.63+0.14=8.9-0.3=
8.5+0.7=6.5+0.6=0.87-0.49=3.8-0.7=
5.4-0.7=6.3+2.4=0.64-0.21=7.9-0.7=
4-0.4=6.9-4.9=0.63-0.38=8.2-0.5=
4.5-0.5=8.3-1.3=0.73+0.41=4.3+0.6=
7.4-0.2=8.1-3.8=0.67-0.4=3.6-0.3=
4.4+0.8=7.3-3.5=0.89+0.14=3.5+0.9=
1.7-0.6=6.6-1.4=0.71-0.11=5-0.4=
二、混合运算。
0.7-0.35+2.98.1-0.63-0.3799.2-53.6-45.3
65.03-19.89+61.6368.4-23.35+75.048.34-5.86+1.95
50-(4.52+0.67)68.8+(25.1-5.4)8.26-5.23-1.59
一、口算。
6.2+0.3=6.2-3.6=0.86+0.32=1.6+0.1=
2.4-0.5=6.9+0.3=0.67+0.34=4.9-0.1=
7.4-0.9=7.5-1.1=0.66-0.21=2.6-0.6=
2.7+0.9=6.6-2.1=0.83-0.15=3.3-0.1=
3.4-0.3=8.7+4.3=0.69+0.41=4-0.4=
8.3-0.4=8.8+4.5=0.88+0.03=7.7+0.7=
1.7-0.8=6.7+4.5=0.65+0.04=7.5-0.1=
8.6-0.2=7.6-4=0.71-0.03=7.1+0.8=
二、混合运算。
0.71-0.16+9.77.9-0.68-4.3256.6+24.1-12
74.75+21.96+49.278.77+46.25+42.659.24+1.29-1.72
60-(7.65+0.63)98.7+(20.9+5.2)8.62-2.99-4.22
一、口算。
4.9+0.9=8.6+0.6=0.81-0.12=2.8+0.9=
2.9+0.4=6.9+1.8=0.79-0.24=3.3-0.8=
3.3+0.8=6.5+0.2=0.79+0.34=7.1+0.9=
6.4-0.2=8.4-2.6=0.85+0.21=7.1+0.6=
4.8-0.9=8.8+4.2=0.9+0.34=2.7+0.7=
2-0.9=8.4+1=0.83+0.42=1.3-0.2=
7.8+0.3=7.3-0.5=0.83+0.24=6.8-0.3=
1.7+0.7=7.3+4.2=0.68-0.05=6.6-0.4=
二、混合运算。
0.73+0.03+6.36.8-0.82-3.1848.6+14.8+15.9
73.06-22.9+28.267.17-37.39+68.458.1+6.47+1.25
80-(6.5+0.11)73.7+(27.6-5.5)9.92-6.34+3.02
一、口算。
6.8+0.5=7.5+3.8=0.81+0.46=2.4-0.4=
7.6+0.6=6.3+0.1=0.88+0.49=2.3-0.5=
1.7-0.8=7.1-0.9=0.9+0.12=4.9-0.4=
5+0.8=6.2+4.4=0.83-0.32=4.7-0.3=
6.9+0.2=7.5+2.8=0.69+0.03=5-0.7=
6.5+0.2=7.9+1.4=0.88+0.48=3.2-0.1=
1.6+0.8=8.3+0.2=0.63-0.06=3-0.6=
8.6+0.2=7.1+0.1=0.68+0.01=2.9+0.1=
二、混合运算。
0.81+0.25+1.18.4-0.24-4.7643.8-26.6-15.9
68.56-17.45+39.287.03-21.99+89.179.25+3.24+1.91
30-(7.18+0.26)63+(18.9-5.7)7.42+3.78-1.4
一、口算。
2+0.1=8.3-2.4=0.89-0.27=7-0.1=
8-0.7=6.5+0.2=0.75+0.4=4.2-0.8=
6+0.7=7.3-2.4=0.63+0.18=6.8+0.3=
1.4-0.1=7.5-3.8=0.77-0.46=5.5+0.8=
2.3+0.9=7.3+4.2=0.82+0.19=7.3+0.6=
8.7+0.4=8.3-2.4=0.75-0.26=6.9+0.4=
1.1+0.6=7-4.1=0.85+0.01=7+0.2=
3+0.1=7.8-1.9=0.88-0.42=6.9-0.1=
二、混合运算。
0.61+0.17+4.96.7-0.62-2.3893.5-29.5-17
72.04-10.41+41.3676.56-30.1+47.97.86+3.36-1.93
20-(4.83+0.99)60.2+(20.3-9.3)7.23+4.78-2.32
一、口算。
1.1+0.7=7.5+3.6=0.68+0.46=5.2-0.1=
8.5-0.1=8.5-4.5=0.68-0.36=3.7-0.7=
1.7+0.7=8.4-3.5=0.71-0.13=7-0.1=
7.5-0.2=6+0.5=0.88-0.15=3.5-0.6=
5.5-0.9=8.4-1=0.63+0.05=1.6+0.5=
7+0.4=6.1+2=0.83+0.13=8.6+0.4=
2.7-0.8=8.9-1=0.74+0.29=3.5-0.3=
4-0.5=8.1-4.6=0.61-0.45=8.3+0.8=
二、混合运算。
0.9+0.07+7.79.4-0.27-2.7360.9-35.2-20.1
75.58-19.39+60.4770.19-34.77+31.555.94-3.27-2.16
90-(7.4+0.82)91.2-(14.2+7.5)6.54-1.24+4.72
一、口算。
2.9+0.9=8.5-4.2=0.79-0.24=2.1+0.2=
5.5-0.8=8.2-4.4=0.88-0.39=4.9-0.6=
6.1+0.2=8.7-4.4=0.63-0.32=2.6+0.1=
4.9-0.6=7.7-1.8=0.69+0.29=6.8-0.5=
5.9+0.1=7.6+2.5=0.76-0.27=8.7+0.3=
5.9+0.1=6.6+4.5=0.78+0.33=3.3-0.8=
2.6+0.3=8.6-0.9=0.8-0.07=3.6+0.4=
1.4-0.4=8.5+2.3=0.88+0.41=6.2-0.7=
二、混合运算。
0.77+0.06+7.26.1-0.31-2.6937.7+11.4-24.9
80.05-43.64+98.8985.46+29.53+96.128.76+2.37-4.38
40-(3.93+0.49)98.4-(18.3+8.1)4.06+2.19+1.07
一、口算。
1.8+0.8=6.6-4.5=0.85+0.49=5.7+0.9=
8.7-0.7=8+3.2=0.9-0.31=8.2-0.5=
3.4-0.7=8.9+3.1=0.67+0.38=4.9-0.8=
3.3-0.1=6.1-4.2=0.7+0.22=4.3-0.4=
5.1+0.6=8.7+3.4=0.67+0.13=7.7+0.2=
3.9+0.7=7.6-3.3=0.6-0.02=2.4+0.1=
1.5+0.5=8.5+0.1=0.66+0.23=1-0.6=
8.2-0.1=6.7+0.4=0.88-0.22=3.7+0.3=
二、混合运算。
0.83+0.11+1.37.1-0.11-0.8995.1+68.1+18.3
74.79-37.78+92.2166.76-34.65+67.627.5-4.61+1.28
30-(3.44+0.3)66.1-(10.3+4)8.57-3.22-2.1
一、口算。
2.7+0.5=6.3+4=0.71-0.18=6.7+0.9=
2.3+0.9=7.9+2.3=0.84-0.13=5-0.5=
3.8+0.3=6-0.7=0.73-0.23=6.4-0.5=
5.8-0.6=8.6-4.6=0.84-0.07=9+0.7=
7.7+0.4=7.5+3.4=0.83+0.33=4.4+0.3=
2+0.4=7-3.1=0.84+0.29=2.4+0.2=
6.3-0.6=8.8+2.8=0.79-0.33=5.7-0.1=
1.8-0.1=8.7-4=0.68+0.11=5.4-0.9=
二、混合运算。
0.88+0.27+4.16.5-0.76-3.2446.7+19.6+11.4
74.54-38.28+74.575.5-10.94+15.084.69-2.12-1.13
40-(5.17+0.46)82.3-(28-6.2)8.67+6.62-1.86
一、口算。
8.3+0.5=8.8-0.3=0.7-0.23=2.9+0.2=
4.9-0.5=9+1.1=0.64-0.12=6.4+0.7=
4.2-0.4=9-2.8=0.
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