人教版四年级数学下册小数混合运算综合练习题17.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17
一、口算。
5+0.8=8.3-3.1=0.81+0.01=7.6+0.3=
5.9-0.7=8.2-1.1=0.86+0.35=7.6+0.8=
3.7+0.9=8.6+3.9=0.83+0.38=5.8-0.3=
7.8-0.8=8.2-3.6=0.64-0.31=1-0.2=
8+0.3=7+4.2=0.73+0.05=5.6-0.3=
2.7+0.9=7.4+1.4=0.62+0.23=3.1-0.6=
4.6+0.8=9-3.2=0.9-0.47=7.9+0.3=
7.4+0.3=7.7-3.2=0.66+0.21=4.7-0.1=
二、混合运算。
0.81-0.02+1.75.3-0.35-2.6555.4-10.4-40
71.31+12.1+38.785.26-35.53+59.057.7+4.58-1.6
70-(6.71-0.93)85+(12.7+3.9)6.41+2.49-1.69
一、口算。
6.3-0.6=7.2+4.1=0.67+0.28=2.5+0.6=
6.1-0.9=6.2-0.3=0.79-0.03=7.7-0.2=
7.5+0.1=9-2.5=0.89+0.48=9-0.1=
7.8-0.1=6.1+2.5=0.8+0.28=2.3+0.3=
2.3+0.6=9-2.6=0.66-0.46=1.7+0.7=
4.9-0.6=8.5+2.9=0.72+0.06=6.2+0.4=
5.4+0.8=8.8+4.4=0.88-0.42=2.2-0.7=
3.2-0.1=7.8+3.4=0.78+0.36=4.7+0.9=
二、混合运算。
0.61-0.32+0.86.5-0.75-3.2541.7+14.6-19.5
60.11+28.8+84.1576.72-22.52+90.676.47+3.86+2.03
40-(1.88-0.37)94.8-(28.7-6.5)7.73+6.1+1.04
一、口算。
8.2-0.1=6+4.2=0.64+0.24=1.7-0.2=
6.5+0.3=7.2-4.2=0.68+0.17=3.2-0.1=
3.8-0.4=8.3+2.2=0.71-0.15=8.3-0.7=
4.7+0.2=6.2+1.6=0.81-0.13=6.1+0.8=
1.7+0.3=7.2-1.5=0.9-0.45=6+0.4=
4.6-0.9=8.3+4.7=0.62+0.31=8+0.1=
7.9+0.1=8.5+4.3=0.63+0.07=1+0.1=
1.1-0.8=7.3-0.9=0.77+0.22=2.9-0.6=
二、混合运算。
0.8-0.07+3.66.5-0.45-2.5569.5-42.8+23.9
85.8+45.55+93.4860.92-20.99+69.118.29+1.05+6.47
30-(9.61-0.81)92.2+(25.1+4.5)8.52-3.86+3.77
一、口算。
3.7-0.6=7.5-0.2=0.75-0.06=8.2-0.4=
1.8-0.2=6.2+4.5=0.66+0.18=3.4-0.6=
7.6-0.3=8.2-1.7=0.75-0.49=2.6+0.5=
6.3-0.8=6.1+2.2=0.62-0.39=2.3-0.4=
6.9+0.8=6.4+4.9=0.69-0.02=5.7-0.3=
7.4-0.8=9+4.1=0.6-0.43=8.3+0.8=
3.1+0.3=8.1+2.3=0.72-0.44=1.5-0.5=
1.4+0.9=6.3-1.1=0.61+0.34=3.6+0.8=
二、混合运算。
0.75+0.06+2.67.6-0.11-4.8947.7+22.6+21
61.29+31.96+19.3680.04-25.88+55.215.84+2.06-2.73
40-(1.33+0.79)71.8+(10.1+4.3)5.66-3.02-1.44
一、口算。
3.9+0.9=7.2-3.4=0.81-0.08=3.7+0.8=
4.9+0.1=8.3+0.1=0.77+0.22=1+0.1=
8.4-0.7=6.9+2.4=0.66-0.03=7.9+0.4=
2.4+0.3=8.6+2.4=0.74-0.21=1+0.8=
7.2+0.1=6-4=0.75+0.38=6.7-0.1=
4.5-0.6=7.2-0.5=0.88-0.37=8.4-0.4=
4.6-0.8=8.9-1.4=0.68+0.2=1.6-0.4=
8+0.1=7+1.4=0.71+0.14=3.8+0.4=
二、混合运算。
0.88-0.43+4.97.8-0.61-0.3988.8-52.5+21.4
76.58-43.01+59.8670.57+32.37+77.738.31+5.52+2.04
80-(2.85+0.55)87.1-(26.3-4)7.21+4.51-1.53
一、口算。
2.5-0.6=8.1-4.1=0.76+0.11=3.3-0.8=
8.5-0.3=8.8-1.3=0.84-0.28=7.8-0.4=
1.6-0.7=7.9+3.5=0.85+0.26=2.9-0.5=
7.2-0.4=6.2+0.4=0.61-0.09=6.2-0.8=
4.7+0.6=8.3-3.7=0.86+0.49=7.5+0.9=
6.7+0.4=8.2+4.1=0.89-0.08=6.8-0.8=
6.5-0.5=7.8+0.2=0.82-0.39=3.7+0.2=
3.8+0.1=6.4+2.4=0.79+0.39=1.1-0.1=
二、混合运算。
0.7-0.29+4.29.8-0.8-4.250.7-23.9-17.7
76.85+35.73+56.8167.52-30.85+52.686.58+4.09+1.67
60-(6.42-0.33)67.4-(29.1-9.4)9.78+6.59-2.11
一、口算。
1-0.8=8.4-2.5=0.73-0.37=1.9-0.9=
7.6-0.4=6.2-4.1=0.81-0.22=2.5-0.5=
5.2-0.6=8.1-2.5=0.62+0.43=1.8+0.1=
6.7-0.9=6.4+2.6=0.83-0.36=8.1-0.2=
2.2-0.6=8.6-2.5=0.89+0.14=7.2+0.5=
8.8+0.8=8-0.9=0.82+0.3=3.3+0.9=
6.4+0.7=6.7+1.6=0.83-0.17=7.8-0.4=
3.7-0.8=7.6-2.7=0.82-0.35=6.7+0.8=
二、混合运算。
0.64+0.31+4.35.5-0.15-2.8552.1+35.1+11.8
85.37+46.3+13.1765.79-22.81+40.046.72+1.6-1.88
90-(5.84-0.44)76.7+(27.2-3.4)4.77+3.2-1.28
一、口算。
1.9+0.5=9+2.2=0.89-0.03=7.1+0.2=
1.4+0.5=8.8+2.1=0.79+0.43=7.9-0.4=
4.7+0.4=6.9+3.1=0.72-0.15=5.7+0.8=
4.7+0.1=7.1-0.9=0.86-0.39=6.7+0.7=
8.5+0.3=7.5-3.2=0.83+0.1=2-0.1=
8.7+0.3=6.7-1.7=0.82-0.4=2.5-0.4=
3.6+0.4=8.2-0.3=0.61-0.08=6.1-0.4=
5.3+0.9=8.3-3.1=0.88-0.36=5.4-0.7=
二、混合运算。
0.89+0.03+5.18.2-0.18-0.8285.3+50.4-23.5
84.49-18.57+36.8483.41-36.49+64.265.32-2.97-1.2
80-(8.6-0.84)66.2+(22.9+5.3)9.66-1.25-4.16
一、口算。
4.4+0.4=8.8-1.3=0.75-0.35=7.8+0.5=
4.8+0.2=7.4+0.3=0.78+0.19=3.9+0.4=
7.1-0.7=9+3.8=0.65+0.04=2.2+0.8=
4.4-0.4=8.2-2.4=0.76-0.26=3.8-0.2=
3.8+0.4=7.3+0.8=0.65-0.27=1.8+0.3=
6.1+0.5=8.5-1.2=0.75-0.38=4.7-0.2=
3.3-0.9=7.4-4.3=0.86-0.39=5.8-0.1=
6.3+0.4=8.6-3.6=0.89+0.08=3.3-0.3=
二、混合运算。
0.72+0.41+5.69.3-0.46-2.5460.1+19.8+37.7
76.88-28.02+13.9678.52+39.59+75.255.36-3.62+1.41
70-(3.01+0.32)82.6+(16.9+5)9.89-1.52-5.87
一、口算。
5.4+0.5=8-2.7=0.75-0.4=3.9-0.6=
8.6+0.7=8-3.3=0.75-0.29=6.6+0.1=
4.3+0.3=7-1.1=0.84-0.13=7.8-0.3=
7.5-0.7=6.2+4.6=0.78-0.28=7.3-0.6=
9+0.6=7-1.1=0.72+0.03=3.6+0.4=
6.6-0.1=6.4+4.5=0.65-0.33=5.8-0.7=
2.7-0.8=8.3-1.8=0.7+0.08=5.5+0.3=
3.3+0.1=8.6+4.1=0.89+0.45=4.9+0.9=
二、混合运算。
0.84+0.42+5.39.8-0.58-4.4272.7+29.9+13.8
87.22+21+29.8663.71-18.53+20.988.84+3.36-1.45
50-(9.79-0.39)65.2+(20.4+5.3)4.63-2.45-1.14
一、口算。
3.1+0.4=6.3+3=0.6-0.2=1.2-0.8=
4-0.4=6.8-2.9=0.8+0.32=8.1+0.6=
3.8+0.1=7.1+0.7=0.64-0.43=8.4+0.2=
2.9-0.1=6+2.8=0.72+0.23=4.5+0.1=
6+0.5=6.2-1.8=0.69+0.47=3.1-0.2=
1.6-0.4=8.9+1=0.74+0.21=7.1+0.2=
3.4+0.1=7.5-2.1=0.64-0.42=7.5+0.1=
1.7-0.7=6.6-2.9=0.86+0.16=1.1-0.8=
二、混合运算。
0.74+0.21+27.9-0.43-1.5788.6-57.1+29.5
84.8+23.38+69.3477.25-13.85+22.858.3-5.53+1.87
20-(6.93+0.83)67.7+(14.5-1.7)4.85-2.09-2.47
一、口算。
6.4-0.1=7.3-3=0.83+0.17=8.8+0.9=
4.4-0.1=8.2-3.5=0.78-0.3=1.4-0.9=
7.9-0.7=6.2-3.5=0.79+0.39=1.1+0.3=
4.7-0.6=7.4-3.2=0.64-0.03=6.2+0.3=
1.7-0.6=6.8+3.7=0.82+0.16=7.5+0.6=
1.1-0.2=6.7+1.7=0.9+0.48=1.7-0.1=
3.1-0.9=6.7+3.1=0.78+0.14=3.9-0.6=
1.2-0.9=7.8-4.2=0.81+0.04=8.3-0.4=
二、混合运算。
0.88-0.06+9.87-0.75-3.2589.1-24.8+27
89.75-22.89+13.7183.67-10.23+94.914.87+3.09-1.78
80-(9.96+0.99)69.4-(15.7+9.3)6.66+5.04-1.43
一、口算。
8.2+0.6=7.6-2.2=0.72+0.02=8.1+0.5=
2.7-0.3=7.3+3.8=0.72+0.04=7.6-0.8=
7+0.1=6.3+3.4=0.76-0.08=6.1-0.1=
4.9-0.5=8.3-2.1=0.77-0.25=4.6-0.7=
3.4-0.2=7.7-2.7=0.68+0.32=5.1+0.2=
6.9+0.7=7.5+2.5=0.75+0.35=7.2-0.4=
4.7+0.7=8.5+1.1=0.68+0.31=6.5+0.9=
2.9-0.6=8.9+0.5=0.87-0.41=5.6-0.4=
二、混合运算。
0.66+0.04+7.96.9-0.7-2.382.9+15.6-34.8
84.98-26.67+66.580.44+13.54+51.095.61-2.5-1.77
40-(1.09+0.14)84.4+(25.6-6.5)6.63-1.64-2.37
一、口算。
1+0.3=8.4-2.4=0.66+0.37=2.9+0.3=
8.6+0.2=6.1+2.5=0.72-0.13=5.4+0.8=
3.8-0.9=7.3-2.9=0.84+0.32=3.7+0.9=
7.5+0.8=6.1+1=0.69-0.24=8.2+0.5=
7.6-0.2=8.8-2.2=0.6-0.23=1.2+0.4=
2.8+0.5=7.2-4=0.84+0.01=1.5+0.8=
8.1-0.4=8.3+2.9=0.88+0.33=8+0.7=
5.9-0.5=6.8+3.5=0.63+0.38=4.7+0.7=
二、混合运算。
0.6-0.49+1.25.2-0.37-1.6393.9+57+24.1
75-25.32+13.463.01-23.37+52.756.14-1.45+2.22
50-(6.99-0.22)85.1-(25.7-3.5)6.12-4.55-1.41
一、口算。
3-0.5=6.3+3.6=0.67+0.25=5.8+0.1=
5.4-0.9=6.8+4.3=0.85+0.22=1.3+0.4=
6.3-0.5=6.5+0.4=0.61-0.11=3.5-0.6=
5.9-0.8=7.5-0.3=0.62-0.09=3.2-0.8=
2.6-0.1=7.6+0.2=0.63+0.43=4.2-0.1=
6.6-0.6=8.9+2=0.76-0.32=6.5+0.1=
8.1+0.7=6.7+2.9=0.69-0.43=7.7-0.4=
8.6+0.7=7.5+1=0.87-0.03=4.7-0.4=
二、混合运算。
0.82+0.05+2.57.1-0.19-0.8157.2+39.5+12.1
86.5+21.09+88.6180.39+24.45+49.013.67-1.04-1.11
50-(1.43+0.62)83.7+(13.9-3.5)3.81-1.94+1.47
一、口算。
1.1-0.2=7.4-4.8=0.84-0.19=1.9-0.5=
5.4-0.1=7.6+4.8=0.86+0.34=3.6+0.1=
6.3+0.1=7.4+2.3=0.76+0.09=1.5+0.2=
5.2-0.6=6.3-3.2=0.6-0.17=3.1-0.4=
3-0.6=6.7+2.3=0.6-0.03=5-0.2=
5+0.2=7.9+3.9=0.62+0.27=3.3-0.3=
8.7-0.3=6.3-4.7=0.86-0.21=7.1+0.8=
3.5-0.1=8.5+3.4=0.71+0.11=8.9-0.9=
二、混合运算。
0.87-0.08+2.59.4-0.41-3.5986.9+32.9+26.8
72.04-14.54+94.2879+32.87+80.578.61-2.97-5.24
70-(2.68-0.73)86.2+(24.1-5.7)3.85-1.52-1.33
一、口算。
2.2-0.4=8.3+1.4=0.74-0.48=3.5-0.4=
2.1-0.9=6.2-4.7=0.82+0.46=1.7+0.9=
7.5-0.3=7.4+2.8=0.67-0.47=8.9-0.4=
4.6-0.9=8.2+3.6=0.65+0.08=4.5+0.4=
3.2+0.7=7-2.4=0.87+0.22=6.9-0.6=
5.1+0.4=8.7+2.9=0.9+0.3=5.3+0.4=
5.2+0.1=7.9-0.2=0.88+0.03=2.2+0.3=
7.9+0.4=6-0.4=0.63-0.44=2.7-0.4=
二、混合运算。
0.72+0.1+66.8-0.71-1.2957.6+16.1-33.4
60.4-46.91+98.1964.93-23.55+31.783.95+1.61-1.75
70-(2.63-0.89)73.4+(20-9.3)3.93-1.44+1.91
一、口算。
1.2+0.7=6+2.5=0.71+0.46=1.5-0.9=
5-0.3=9-4.4=0.68-0.19=4.7+0.5=
3.