人教版四年级数学下册小数混合运算综合练习题102.docx
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人教版四年级数学下册小数混合运算综合练习题102.docx
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人教版四年级数学下册小数混合运算综合练习题102
一、口算。
5.5+0.5=7.4-4.9=0.62+0.45=5-0.7=
5.1+0.5=7.8+2.8=0.82-0.08=3.2-0.9=
5.9+0.7=7.9-1.8=0.84+0.28=6.7+0.6=
3.6+0.9=6.4+0.8=0.9+0.21=2.1+0.9=
5.6-0.6=8.6-2=0.61-0.01=5.5+0.4=
6.6+0.7=8.6+1.4=0.84+0.22=7.7+0.2=
6-0.8=6.4+2.5=0.85-0.08=5.3+0.1=
3.5+0.2=6.6+1.6=0.81-0.27=5-0.3=
二、混合运算。
0.65-0.16+2.37-0.43-0.5746.9+22.4-18.1
83.34+45.45+12.4164.74-44.25+82.017.07+4.59-1.14
80-(6.6-0.44)90.5+(23.9+9.1)9.63+7.52-1
一、口算。
7.9+0.6=8.5+1=0.6+0.14=4.6-0.4=
4.4-0.6=8-0.4=0.6-0.42=2.6+0.5=
1.1+0.7=7.1-4.6=0.81+0.35=7.3-0.8=
4.3-0.6=8.3+0.6=0.67+0.33=2.8+0.4=
8.6-0.7=6.2-1.8=0.72+0.3=2+0.5=
4.9+0.9=8.8+3.1=0.69+0.16=2.5+0.9=
7.6-0.3=8.3-3=0.73-0.15=2.7+0.4=
6.2+0.7=6.3+4.6=0.79+0.3=8-0.1=
二、混合运算。
0.88-0.29+2.95-0.32-1.6893.7-62.3+21.2
82.64+26.64+17.1974.64-12.42+51.534.38-1.37-1.56
60-(7.7-0.2)67.6+(23.7-3.7)7.26+3.85+1.79
一、口算。
8.7-0.3=8.8+4.4=0.81-0.03=1.2+0.8=
1.4+0.6=7-2.3=0.71-0.2=8-0.3=
8.6-0.7=7.7-1.5=0.89-0.42=6.8-0.9=
2.3+0.8=6.1+0.8=0.64-0.11=4-0.5=
2-0.3=7.8-2.3=0.65-0.01=8.1-0.3=
1.5+0.2=6.2+0.4=0.83-0.31=2.7-0.2=
8.1-0.9=8.6-4.8=0.88-0.37=7.2-0.6=
5.7+0.8=7.1+3.5=0.8-0.3=1.6-0.1=
二、混合运算。
0.87-0.1+0.78.1-0.61-0.3943.8-13.1-25.7
76.19-41.55+43.5964.38-39.54+24.54.47-1.61-1.03
90-(7.51-0.69)86.1-(22.6-2.5)9.67-5.15-3.56
一、口算。
8.5-0.9=7.5-0.5=0.77-0.48=7.8+0.5=
8.8-0.3=8.6+2.9=0.67+0.32=4-0.8=
3.5-0.2=7.2-0.9=0.8-0.43=8.7-0.4=
1.3+0.1=8.6+0.3=0.63-0.43=6.7-0.3=
7.2-0.9=7.1+1.9=0.9+0.12=2.1-0.2=
9-0.3=8.7+0.6=0.72+0.05=5.3-0.6=
5.4+0.9=6-2.4=0.88-0.46=8.4+0.5=
7.5+0.3=6.2+2=0.86+0.35=8.1+0.4=
二、混合运算。
0.69-0.32+9.76.9-0.16-0.8444.3+22.1-11.6
85.88-32.71+22.0472.86-12.33+88.769.56+6.22+1.39
30-(4.13-0.25)62.1+(23.1-5.3)5.37-1.79-3.15
一、口算。
1.7+0.9=7+0.8=0.65-0.32=3.9-0.3=
1.5-0.4=8.4+0.9=0.89-0.14=6.9+0.5=
3.1+0.8=7.8-0.3=0.77+0.19=7.3+0.4=
2.9-0.6=8.9-2.5=0.6-0.01=5-0.9=
6.8+0.7=8.8-0.8=0.79-0.37=5.8-0.4=
4.7-0.3=7.4-4.9=0.86+0.49=7.1-0.6=
1.9+0.7=6.2+4.9=0.6-0.05=2.9+0.7=
6.7-0.3=8.3+1.1=0.84+0.05=3.4+0.7=
二、混合运算。
0.75-0.49+36.8-0.76-4.2487.5+32.4+24.2
79.26-43.18+16.7963.42+26.73+19.195.11+1.73+3.24
90-(9.13+0.23)96.3+(20.8-6.2)3.86-1.21-2.22
一、口算。
6.5-0.2=8.3+0.7=0.68+0.19=7.1+0.3=
3+0.4=6.2+1=0.78+0.15=7.8+0.1=
1.3-0.7=7+0.5=0.66-0.19=3.4-0.4=
6.1+0.1=8.7-3.9=0.89+0.02=3.4+0.7=
6.4-0.4=8.1+4.4=0.86+0.35=8.9+0.1=
7.3-0.4=6.5-4.9=0.64+0.27=3.9-0.1=
3.7-0.2=8.1-4.4=0.88-0.32=8.6-0.1=
5.4-0.1=8.1+3.1=0.75-0.41=3.1-0.3=
二、混合运算。
0.85+0.48+0.65.6-0.89-1.1192.5+61.3+25.6
62.97-15.09+10.1180.15+34.56+77.674.93+1.34-2.64
20-(3.11-0.49)78.7-(13.4-6.1)7.95-6.45+1.39
一、口算。
2.9-0.5=8.8+4.9=0.75+0.13=6.6-0.6=
2.4-0.2=8.4+2.9=0.73-0.33=2.3+0.1=
1.8-0.6=6.6+2.1=0.66+0.23=6.2+0.1=
8.5+0.6=6.3+2=0.84-0.01=5.2-0.4=
6.5-0.2=8.7-1.2=0.7+0.46=3.9-0.2=
4.6-0.1=7.6-1.7=0.68-0.11=2.3+0.1=
5.8+0.8=6.1+1.6=0.82+0.41=2-0.6=
3.8+0.6=6.7+0.1=0.83+0.42=5.1+0.9=
二、混合运算。
0.8-0.09+5.38.4-0.56-1.4458.5-20.7+37.3
74.98-12.3+69.7979.55+17.22+32.665.46+1.85-3.48
60-(4.69+0.4)63.7+(29.1+9.5)8.48-6.64+1.46
一、口算。
8.4+0.6=8.8-1.4=0.82-0.14=8.3-0.9=
6.7-0.5=7.1+1.1=0.75+0.13=6.3-0.9=
2.7+0.7=8.4+1.9=0.86+0.35=4.1-0.9=
4-0.9=8.2-4.1=0.67-0.26=1.3-0.1=
5.5+0.7=6.6+0.4=0.7+0.28=8.6-0.7=
3.3-0.9=6.1+0.8=0.67+0.39=6.8-0.3=
1.3+0.1=9+0.9=0.83+0.04=7.6-0.8=
4.1+0.1=9+1.2=0.62+0.43=2.9+0.6=
二、混合运算。
0.86-0.34+2.58-0.72-1.2881.3-45.4+16.7
69.12-30.13+21.8286.86-26.68+79.737.03+4.08-2.94
50-(7.62+0.45)62.2+(11.4-9.8)5.54+3.8-1.47
一、口算。
3.8-0.4=8.1+0.2=0.67+0.37=5.2+0.2=
8.8-0.3=7.6+4.3=0.78-0.12=1.2-0.9=
7.9-0.2=6.2+0.1=0.9-0.11=7.8+0.5=
4.6-0.8=6.5-4.9=0.63+0.36=6.1-0.8=
6+0.8=6.4+0.3=0.7-0.13=8+0.1=
6.9+0.2=8.6-3.1=0.8-0.04=1.6-0.2=
2.4-0.4=6.6-0.5=0.73-0.34=6.9+0.4=
1.9+0.4=6.4+3.5=0.81-0.29=4.5-0.8=
二、混合运算。
0.67+0.34+75.1-0.18-0.8238.4-15-10.5
85.46-41.45+43.8470.02+45.94+51.255.34+2.08+1.51
60-(2.05+0.36)72.5-(18.6-5.6)9.62-5.64+1.07
一、口算。
2-0.6=8.2-4.7=0.67-0.23=6.2+0.5=
5.2-0.4=6.8-1.4=0.6+0.22=2.5+0.2=
5.9+0.7=8.7+0.4=0.71-0.24=8.4+0.8=
7.9+0.7=6.9-4.2=0.76-0.3=8.7+0.6=
1.9+0.1=7.4+4.3=0.81+0.21=5.3-0.7=
6.3+0.5=6.2-2.6=0.83-0.33=2.3+0.6=
8.6-0.2=6.1-4.7=0.76-0.4=1.6-0.2=
4.1-0.5=7.6-1.6=0.78-0.07=1.2-0.2=
二、混合运算。
0.82+0.09+2.46.7-0.7-1.353.7-38.7+10.2
68.43+43.05+14.2575.27-48.93+86.797.85+1.75-5.78
90-(1.75+0.91)88.6-(18.5-2.5)6.99+4.17+1.23
一、口算。
3.5+0.3=6.7-3.1=0.63-0.44=1.8+0.1=
8.7-0.7=6.8+1.6=0.87-0.31=1.5-0.2=
8.8+0.1=7.4-4.5=0.85+0.23=1.4+0.3=
3.8+0.5=9+0.4=0.75-0.07=4.1+0.6=
5.2+0.4=6.8-4.7=0.83-0.02=1.5+0.4=
6.8+0.1=7.6+1.6=0.63+0.2=7.5-0.1=
2.8+0.6=6.8-3.3=0.74-0.19=7.2+0.5=
4.4+0.3=7.8+2=0.73+0.33=1.4+0.3=
二、混合运算。
0.61+0.23+5.97.2-0.59-4.4154.3+22.6-29.8
89.02+41.41+37.5976.31-41.41+25.783.7+1.23-1.34
70-(5.62-0.13)99.7-(23.8+7.7)5.54-3.34-1.69
一、口算。
7.3-0.6=8.8-2=0.66-0.01=3.6+0.8=
2.2+0.5=6-4=0.71+0.49=4.3-0.5=
4.5+0.1=8.2-2.1=0.62+0.25=8.6+0.8=
5.1-0.1=8.7-2.3=0.82-0.24=5.9+0.8=
1-0.9=7.5-3.8=0.86-0.32=5+0.1=
1.9-0.3=7+0.8=0.67+0.19=6.7+0.9=
5.3+0.9=8.9+3.8=0.85-0.29=8-0.9=
8.3-0.8=8.4+1.5=0.71-0.17=6.6+0.3=
二、混合运算。
0.61-0.31+5.98.7-0.35-4.6572.6+55+10.8
86.95-30.5+45.2570.26-18.58+82.55.28+3.12+1.13
40-(3.16-0.72)60.5-(25.3-2.9)9.61+3.77-4.06
一、口算。
2.5+0.5=6.1+4.4=0.83+0.47=8.2+0.1=
7.9+0.1=7.7+4.3=0.85-0.02=8.7+0.4=
2.9-0.3=8.7+3.1=0.7+0.02=2+0.6=
3.5+0.6=8.4+0.3=0.9-0.49=1.6+0.1=
7.4-0.7=8.1+4.2=0.85+0.31=5.4+0.7=
8.7-0.4=7.8-3.1=0.64+0.2=7.4+0.1=
1.3-0.7=8.7+1.7=0.72+0.14=8.9+0.9=
7.1+0.4=7.8-1.8=0.76+0.26=3-0.3=
二、混合运算。
0.62+0.04+8.95.5-0.38-3.6257.9-24.1+18.1
67.17+14.16+10.5164.42+29.56+60.246.57-3.78+2.62
50-(4.27-0.3)66.7+(14.7-6.6)7.73+4.12+3.22
一、口算。
1.4-0.8=7.6-0.2=0.82+0.02=1.5-0.7=
2.7+0.6=6-3.4=0.68+0.25=2.7+0.5=
5+0.7=8+1.6=0.73+0.18=1.6-0.9=
5.3+0.1=6.2-1.4=0.72-0.35=2.4-0.4=
3.6-0.6=7.2+2.4=0.63-0.21=4.2-0.3=
1+0.6=6.5+3.3=0.86-0.1=3.5-0.5=
6.1-0.8=7.9+2.9=0.9-0.34=8.2-0.3=
3.5+0.7=7.6-3.5=0.71-0.05=5.5+0.2=
二、混合运算。
0.76+0.39+3.48.8-0.52-3.4856.4-22-15.2
60.89-19.02+64.0888.59-36.58+24.575.8+2.56-1.5
20-(5.89-0.98)72.9+(12.2-8.8)5.12-1.23-1.94
一、口算。
8.9+0.4=6.9-1.4=0.86+0.17=2.2+0.1=
2.7+0.1=8+4.3=0.74+0.04=3.2-0.4=
2.9-0.3=7.2+3.5=0.75-0.43=8.5+0.1=
5.6+0.4=8.8-0.3=0.89+0.45=3.1+0.1=
2.1-0.1=7.2-3.7=0.89+0.45=5+0.3=
5.7+0.8=6.2+2=0.84+0.23=6.2+0.9=
2.1-0.9=6.8+0.7=0.72-0.35=5.4-0.3=
1.7-0.5=8.7+3.2=0.66-0.17=5.1+0.6=
二、混合运算。
0.77-0.32+47.4-0.2-2.883+63.3-18
85.72-17.49+84.6864.74-29.75+26.826.05-1.76+1.84
50-(1.65-0.53)78.9+(21.6-8.3)4.44+2.5-1.54
一、口算。
1.3-0.5=8.5-2.2=0.77-0.31=8.2+0.2=
4-0.4=8.3+2.5=0.69-0.39=4.7+0.2=
2.8+0.6=7+2.5=0.6+0.38=8.7+0.4=
7.4+0.3=8.5+1.5=0.86+0.05=5.3-0.4=
4.1-0.9=6.8-4=0.87+0.44=3.6-0.9=
8.8-0.3=7.1+0.9=0.61+0.33=3.7+0.6=
6.4+0.8=8.8+0.6=0.9+0.29=4+0.4=
6.6+0.4=6.6-2=0.8+0.35=8.8-0.5=
二、混合运算。
0.62-0.04+4.89.5-0.56-2.4436.2+11.6+23.3
71.88+35.51+28.4164.08+13.08+21.879.47+7.29+1.52
50-(3.22-0.57)75.5-(11.6+9.6)5.32-2.53-1.27
一、口算。
6+0.6=8+0.8=0.87+0.34=6.3-0.6=
5-0.6=6.5-2.1=0.87-0.42=2.3+0.2=
7.8+0.9=6.6-1.1=0.84-0.44=1.5+0.8=
4.2-0.8=9+0.5=0.89-0.46=8.6+0.1=
6+0.2=6+0.6=0.78-0.23=7.1+0.9=
4.9-0.5=7.1-1.7=0.79-0.08=2.7+0.7=
4.9-0.9=7.5-1.2=0.74+0.17=5.3-0.4=
3.7-0.6=7.6-3.2=0.69+0.24=9-0.2=
二、混合运算。
0.72+0.1+2.48.2-0.12-0.8891.8+17.6+11.3
72-18.55+54.1274.06+45.47+88.697.97-4.39+1.14
50-(5.04-0.72)62.7+(15.6+7.1)8.13-3.21-2.26
一、口算。
3.9+0.5=7.8+2.7=0.75+0.2=3.4+0.9=
5.5+0.4=7-1.7=0.89-0.48=5.2+0.6=
8.3+0.1=6.5-2.8=
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