人教版四年级数学下册小数混合运算综合练习题5.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5
一、口算。
3.4-0.4=7.8+3=0.8-0.17=6.3-0.5=
1.8-0.7=8.1+4.9=0.67+0.27=4.3+0.3=
8.3-0.9=6.3+1=0.66+0.22=9+0.6=
1+0.2=6.1-0.1=0.63-0.03=2.1-0.2=
8.8-0.2=8.2+0.2=0.74-0.34=2.4+0.2=
1.2-0.8=8.8-4.2=0.83-0.07=5+0.3=
5+0.6=8.6+3.6=0.86+0.42=3.8+0.2=
3.8+0.6=6.7-3.8=0.72+0.04=3.2+0.6=
二、混合运算。
0.62-0.42+8.46.9-0.74-4.2664.9-28.1-18.3
88.34+16.97+47.1275.53+21.36+65.737.04-1.12-3.65
70-(1.58-0.19)88.4-(17.6-7)7.46+5.38+1.26
一、口算。
1-0.3=7.8+1.1=0.9-0.16=1.5+0.7=
4.6-0.9=7.8+1.1=0.82+0.44=1.6+0.3=
1.5-0.6=7.6-2.9=0.71-0.25=2.1+0.3=
3.7+0.7=8.8-0.5=0.72-0.3=5.4-0.5=
2.5-0.3=8.9-3.4=0.68+0.38=8.8-0.9=
4+0.3=7.2+0.3=0.7+0.14=7.7+0.6=
7.1+0.7=9+3.7=0.89-0.46=2.8-0.4=
8.1-0.4=8.1+2.2=0.85-0.18=1.7-0.1=
二、混合运算。
0.86-0.3+37.9-0.34-0.6665.2-47.8+12.6
82.19-18.88+32.2867.87-39.56+49.133.62-2.12+1.16
20-(2.45-0.63)99.6-(26.3+3.8)6.99+1.53-1.65
一、口算。
8+0.2=6.8+4.4=0.87+0.13=8.3+0.6=
8.8-0.1=8.9-4.9=0.85+0.05=8.1+0.5=
4.7+0.7=6.1+4.1=0.84+0.13=6+0.9=
7.3+0.4=8.5+0.9=0.83+0.41=1.4-0.6=
8.2-0.2=8.7+3.8=0.84-0.35=8.5-0.2=
8.5+0.4=6.6+2.1=0.61-0.05=1.3-0.7=
2.5-0.5=6.6-4.9=0.68+0.01=2.7-0.3=
8.2+0.1=8.8+4.1=0.8-0.03=8.8+0.6=
二、混合运算。
0.73+0.03+7.76-0.88-1.1236.6+14.7+20.8
74.94-46.71+15.6683.67-33.14+43.119.36+3.98-2.99
30-(3.57-0.2)89.6+(22.6+9.5)6.67-1.08+3.09
一、口算。
6.5+0.2=8.8-1.2=0.82+0.04=1.6+0.2=
5.4+0.8=8.5-0.6=0.85-0.16=8.9-0.4=
4.6+0.6=6.3+4.3=0.61+0.4=4.7+0.1=
1.5-0.8=6-3.6=0.64-0.26=4.8-0.4=
3.1-0.5=6.9+2.8=0.63+0.22=6.4+0.4=
4.7-0.5=8.4-0.3=0.64+0.2=6+0.9=
5.7-0.4=7.7+1.9=0.86-0.16=1.2+0.6=
8.6-0.7=8.9-4.1=0.6-0.15=4.5+0.6=
二、混合运算。
0.83+0.39+97.7-0.15-3.8568+17+27
89.33-30.61+73.7477.08+35.64+39.667.29-3.37+1.45
60-(9.06+0.94)67.6-(26-7.2)4.43-2.11+2.28
一、口算。
4.9-0.2=6.8+4.1=0.64-0.09=4.9+0.2=
6.8+0.3=8.1+0.7=0.86-0.04=5.4+0.1=
8.8-0.1=7.3+3.1=0.81-0.27=5.7-0.6=
5.3-0.8=7.3+3.5=0.66+0.1=7.7-0.1=
5.6+0.8=8.2+4.1=0.62+0.32=6.5+0.6=
2.6+0.5=6.9+2=0.86-0.44=3.2-0.5=
1.5-0.5=7.8-3.4=0.74-0.26=5.7+0.7=
6.6-0.3=6.7+1.7=0.75-0.48=7.4+0.7=
二、混合运算。
0.82-0.29+1.26.6-0.39-1.6173.1+28.4-31.7
82.64-43.6+87.778.75-28.23+32.655.23-2.34+1.14
20-(4.62-0.69)96.8-(22.3-1.9)8.44-3.12+3.96
一、口算。
3.5+0.6=6.8-4.8=0.65-0.35=1.1+0.7=
4.9+0.1=9+4.1=0.86-0.28=5.1+0.2=
6+0.1=6.1-2.9=0.8-0.38=4.9+0.1=
8.1-0.1=6.9+4.4=0.72-0.2=1+0.9=
1-0.1=7.5-0.7=0.62+0.19=2.5+0.9=
2.3-0.8=6.7-4.6=0.7+0.08=3.4-0.3=
6+0.8=8.5+0.9=0.71+0.43=7.4+0.1=
3.4-0.5=8.7+3.6=0.8-0.22=2.1+0.4=
二、混合运算。
0.78-0.38+75.2-0.64-4.3694.6-48.2+38.1
78.98+33.45+29.5876.09+44.91+72.276.2-3.53+1.58
80-(8.33-0.96)68-(27.5+8.5)6.32-3.42-1.05
一、口算。
1-0.5=8-0.4=0.87+0.13=7.9-0.6=
1.8-0.7=8.2+0.3=0.6-0.47=8.7+0.4=
4+0.5=8.2+1.7=0.66+0.21=7.8+0.2=
8.4-0.4=7.6-1.3=0.73-0.45=4.5+0.2=
3.5-0.6=7.6-1.1=0.72+0.01=5.3+0.1=
2+0.9=7-0.8=0.61-0.24=3.8+0.7=
5.6+0.8=8.8-0.5=0.74-0.1=8+0.8=
8.7-0.3=6.5-3.5=0.68+0.45=9-0.4=
二、混合运算。
0.63+0.05+3.96.9-0.26-4.7481.3+33.8+20.9
78.96+22.98+29.3275.52-25.13+48.096.47+1.83-4.07
30-(1.06-0.96)62.9-(23.1-7.7)4.08-1.07+1.46
一、口算。
7.9-0.7=6.9+3.1=0.68+0.32=3.6-0.2=
4.3+0.5=7.4+2.6=0.88+0.31=5+0.7=
5.2-0.6=8.2+0.8=0.6-0.44=6.6+0.5=
5.6+0.6=6.5+1.1=0.63+0.43=8.8+0.5=
8.5-0.9=6.6+2.3=0.65-0.46=3.6-0.9=
6.7-0.8=6.5-2.7=0.85+0.31=8.8+0.6=
1.5+0.4=6.9-3=0.86-0.16=8.6+0.5=
2.7+0.4=6.9+1.1=0.6-0.42=3.6+0.6=
二、混合运算。
0.74+0.2+8.99.7-0.73-3.2751+10.3-36.7
87.64+11.56+50.9781.87-41.89+37.288.68-1.5-6.71
70-(8.27-0.75)93.7-(10.1+3.6)9.87+4.15-4.76
一、口算。
8.5-0.2=6.6-0.8=0.85+0.19=1-0.1=
2.1-0.4=6.6-2.6=0.82-0.13=8.5+0.2=
6+0.6=8.8+0.5=0.84+0.39=8.6-0.3=
4.6-0.9=7.3-4.9=0.66-0.03=5.7+0.8=
6.7+0.6=6.8-2.2=0.74-0.38=6.9-0.5=
7.7+0.6=7.6+4.5=0.76+0.16=1.9+0.8=
4.1-0.8=7.4-2=0.74-0.03=7.8-0.8=
4.1+0.9=7+3.6=0.86+0.16=9+0.5=
二、混合运算。
0.89+0.44+1.78.2-0.68-2.3276.2-21.8+38.7
85.42+26.39+85.4666.81-38.24+10.935.16-2.46+2.33
70-(2.36+0.86)83.3-(23.7+8.8)9.42-4.27+3.69
一、口算。
4.8+0.7=8.6-3.2=0.74+0.04=3.9-0.3=
5.8-0.6=8.6-1.3=0.68-0.37=4.1-0.7=
5.4-0.3=8.3+3.3=0.74+0.48=7.6+0.3=
3.5+0.2=6.2+2.3=0.69-0.27=1.7-0.6=
8.1+0.8=6.7-4.1=0.69-0.45=2.3-0.7=
5.2-0.7=8-3.1=0.64-0.48=4.3-0.9=
8.8+0.8=6.6-4.2=0.85+0.23=6.9+0.1=
7.1+0.1=6.4+0.8=0.62+0.11=8.4+0.7=
二、混合运算。
0.68-0.13+2.67.8-0.86-4.1497.3+44.8+46
76.71+39.41+28.7881.59+35.7+92.638.6-1.52-4.08
90-(5.68-0.52)81.3+(11.6-4.2)3.93+1.71+1.43
一、口算。
7.4-0.9=7.3-2.2=0.83+0.31=8.5+0.6=
5.8+0.4=6.9-0.1=0.9+0.05=7.4+0.9=
1.6+0.6=6.7+4.8=0.67-0.12=1.3+0.9=
5.1-0.3=8.9-1.6=0.67+0.31=1.7+0.4=
8.5+0.6=8.5+1=0.9-0.38=4.6+0.3=
6-0.6=6.2-2.1=0.76+0.04=6.5-0.5=
5.1+0.9=6.2-3.5=0.89+0.48=6.3+0.6=
8.5+0.2=6.9+1.8=0.62+0.13=7.7+0.7=
二、混合运算。
0.61-0.4+0.57.7-0.1-0.959.9-23+23.6
75.96-30.79+30.7965.29-36.81+49.269.71-3.22+4.96
60-(3.29-0.63)97.6-(10.2+6.8)4.13+2.32+1.51
一、口算。
4.9+0.2=7.2+3.1=0.65-0.31=5.3-0.3=
4-0.7=6-3.5=0.73-0.49=7.3+0.5=
2.2+0.6=9+4.1=0.74+0.15=1.8+0.6=
1.8-0.3=6.5-3.9=0.81+0.28=1.6-0.1=
3+0.5=8.9+2.8=0.67+0.21=6.7-0.2=
4.2-0.5=8.5+3.8=0.76+0.32=1.6-0.1=
2+0.4=6.2+0.5=0.89+0.04=5.8+0.5=
5+0.3=7.9+1.8=0.85-0.29=6.1+0.2=
二、混合运算。
0.7-0.04+6.48.2-0.6-3.468.3+23+16.3
74.91-34.03+22.0367.04-30.91+83.374.71-1.52-1.12
40-(1.41+0.92)83.4+(17.7-1.2)7.29-3.57+1.41
一、口算。
4.9-0.1=7.1+1.1=0.8+0.33=2.8+0.2=
7-0.6=8.9-3.1=0.89-0.14=8.9-0.7=
7.5+0.1=8.5+3.4=0.65+0.47=5.7-0.6=
3.1-0.2=7.4+0.2=0.7+0.23=7.7+0.1=
1.9+0.8=8.7-1.3=0.76-0.11=1.9-0.3=
5.8+0.8=8.9-4.5=0.65-0.45=2.5+0.8=
8.6+0.5=7.2-4=0.63-0.12=5.3-0.5=
9-0.2=7.9+4.2=0.7-0.41=5.4+0.5=
二、混合运算。
0.62+0.02+9.76.9-0.64-3.3644.4+21.1-21.9
76.81+11.18+82.6664.73-24.32+68.713.95+1.57-1.97
20-(8.69-0.77)80.7-(24.7-4.7)7.89-2.36-3.11
一、口算。
3.1+0.8=8.3-4.5=0.76+0.49=2+0.1=
1.2+0.8=7+2.7=0.77-0.46=4.1-0.5=
4.1+0.4=8.4+3.3=0.65+0.24=4.3-0.1=
2.8-0.8=7.3+0.7=0.78+0.12=1.4-0.9=
7.6+0.3=7.9+0.5=0.89-0.47=7.4+0.8=
6+0.2=7.7-0.7=0.64+0.21=7.7+0.6=
8.7-0.9=7.9-0.1=0.7-0.25=1+0.9=
4.5+0.5=8.3+1.6=0.69+0.33=8.5+0.9=
二、混合运算。
0.81-0.24+38.1-0.83-1.1744.9-28.7+11.1
74.96-26.04+21.5883.63-31.99+78.69.29+2.34-5.14
40-(1.61+0.36)70.9+(17.5-8.5)8.31+3.34+2.8
一、口算。
3.2+0.9=6+4=0.88-0.35=1.9-0.6=
1.7+0.2=7.8+2.5=0.65+0.06=3.3+0.4=
1.1+0.1=7-1=0.75-0.25=6.8-0.5=
3.5-0.1=6.1+3.6=0.84-0.14=7.6+0.3=
5.6+0.1=8.8+1=0.82-0.17=6.2-0.5=
4-0.1=7.3+4.3=0.76+0.2=3.7+0.1=
7+0.3=6.1-3.4=0.81-0.33=4.4+0.2=
4.6-0.7=6.4+1.6=0.62-0.38=7.4-0.1=
二、混合运算。
0.84+0.39+0.66.5-0.1-0.975.5+38.7+29.7
66.76-41.93+77.4883.71+15.18+87.59.88+3.78+1.56
40-(6.09+0.78)62.1+(20.6+4.5)8.91+4-4.58
一、口算。
2.4+0.7=8.6+0.2=0.71-0.02=8.8+0.8=
7.4-0.3=6.2+2.1=0.64+0.13=8.4-0.3=
6.6-0.9=8+4.5=0.88-0.3=5.9+0.2=
2.5-0.2=7.3-0.2=0.88-0.26=4.4+0.5=
8.5+0.3=7.9+2.4=0.65+0.01=7.6+0.7=
7.5-0.5=6.5-3.7=0.77+0.31=4.6+0.2=
4.9+0.1=7.8-1.4=0.73-0.12=6.9-0.4=
1.7+0.1=8.1+0.3=0.85+0.19=9-0.6=
二、混合运算。
0.82-0.3+2.56.1-0.9-4.164.1-20.4+25
83.07+14.25+86.9488.26-40.51+23.114.65+1.09+1.81
50-(4.16+0.24)98.4+(22.5-7.6)6.55+2.98-1.26
一、口算。
6.8-0.6=8.7+4.8=0.63+0.09=8.1-0.7=
8.4+0.7=6.2+1.2=0.71+0.46=8.8-0.4=
3.6-0.4=8.6+1.1=0.87+0.41=2+0.1=
1.9-0.7=7.3-2.6=0.9+0.43=9+0.5=
5.5+0.1=8+0.7=0.75+0.02=3.1+0.6=
7.5-0.7=7.6-2.3=0.64-0.41=6.8-0.3=
6+0.1=8.3-1.2=0.74+0.1=8.4-0.7=
8.6-0.2=6.2-2=0.7-0.19=4.9+0.3=
二、混合运算。
0.72+0.25+0.78.3-0.35-1.6578.7-15+30.5
88.36-33.01+33.4262.22-34.31+89.399.75-7+1.31
90-(7.35+0.71)85.7+(14+1.3)8.43+1.35-3.88
一、口算。
5.6-0.4=8.8+4.6=0.7+0.2=4.7-0.6=
2.1-0.1=7.6+1.5=0.66-0.08=8.6+0.2=
2.7-0.9=7.7-3.9=0.88+0.27=4.4-0.9=