人教版四年级数学下册小数加减法混合运算专项练习题16.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16
一、口算。
5.7-0.7=7.7+3.2=0.7-0.29=3.2+0.7=
4.5-0.8=8.8-2.6=0.64-0.4=8.1-0.8=
3.9+0.1=8.5+0.9=0.72+0.21=8.7+0.6=
3.3+0.5=6.5-2.8=0.9-0.32=4.8-0.3=
4.4+0.2=8.4+2.4=0.7-0.45=2.8-0.3=
8.1-0.7=7.7+0.7=0.79-0.23=3.9-0.9=
1+0.1=8.1+2.5=0.67+0.14=1.3+0.4=
2.6-0.8=8.3+4.8=0.72-0.47=4-0.8=
二、混合运算。
0.85+0.4+1.15.8-0.12-2.8891+47.6+15.1
73.47-39.23+40.1889.63-13+58.57.05+3.14-1.66
60-(9.36-0.57)77.2+(16.6-1.3)6.2+2.28-3.09
一、口算。
2.6-0.4=6.8+1.1=0.73-0.03=6.6+0.9=
4.4+0.7=7.5-0.2=0.9-0.03=2.1-0.1=
5.8-0.6=7.7-4=0.74-0.27=5-0.6=
8.5-0.1=8.9-4.4=0.85-0.2=8.7+0.5=
1.6+0.1=7.3+0.5=0.65+0.3=6.8+0.8=
8.3+0.1=7.1-3.7=0.83+0.07=4.5-0.8=
3.6-0.4=7.4-2=0.77-0.05=4.6-0.5=
5.1-0.2=6.3+3.5=0.74+0.49=5.1+0.4=
二、混合运算。
0.65-0.29+6.55.8-0.56-3.4458.1-13.8-19.9
66.87+11.58+14.7763.33+25.62+41.85.56-3.05+1.69
90-(4.57+0.25)62.3+(26.3-3.7)6.34-1.34-4.45
一、口算。
7.7-0.8=6.8-4.5=0.68-0.06=2.5-0.5=
1.1-0.5=7.4-4.3=0.9-0.28=1.8-0.9=
3.8-0.8=8.1+0.8=0.81-0.16=1.6+0.2=
4.5-0.7=6.1+2.7=0.67+0.43=6-0.9=
5.8+0.7=8-0.3=0.67-0.35=1.5-0.6=
6.7-0.5=6.9+2.4=0.65+0.21=5.4-0.1=
2.9+0.4=8.3+4.6=0.85-0.37=6.8-0.9=
3.2+0.7=8+2.9=0.6+0.09=8.6+0.2=
二、混合运算。
0.65+0.19+4.88.8-0.49-4.5138.2-19-12.9
85.38+25.98+87.9569.85+22.46+40.765.33-3.07-1.91
70-(5.1+0.46)81.9-(29.1+4.7)5.17-3.43+1.67
一、口算。
3.8+0.9=7-0.6=0.82+0.36=7.2-0.6=
1.3+0.5=7.1+0.9=0.76+0.31=7.8+0.5=
3.3-0.6=8.3-4.9=0.7-0.05=7.2-0.9=
7.6-0.5=8.2-1.5=0.9+0.4=8.6+0.1=
7.3+0.6=7.4-1.1=0.8-0.38=1.3-0.3=
8.5+0.2=6.2-0.8=0.69+0.14=7.6+0.9=
6.1-0.5=8.9-1.3=0.9+0.47=8.5-0.1=
2.1+0.7=7.2+0.1=0.61-0.46=5-0.4=
二、混合运算。
0.64+0.31+2.25.3-0.71-1.2957.3+25.4-13.8
66.93+24.27+55.2366.69+21.3+73.956.14+1.26+1.64
80-(9.51-0.67)81.4+(12.2-6.2)6.78+1.07+3.46
一、口算。
8.7-0.5=8.1+4.1=0.67+0.15=6.9+0.8=
2.7+0.7=8.6-0.4=0.68-0.45=8.4+0.7=
2.2+0.9=6.7-3.2=0.72-0.36=2.4-0.6=
4.1-0.8=8.5+3.6=0.85-0.11=6.5+0.5=
3.7+0.9=6.1+1.8=0.76+0.43=7+0.3=
2.5-0.2=7.9+0.4=0.72+0.13=6.6+0.7=
5.7+0.5=6.7+2=0.8+0.47=5+0.9=
3.1+0.4=6.4+2.4=0.77+0.09=2.7-0.8=
二、混合运算。
0.86+0.23+9.17.7-0.49-0.5157.5+13.5-11.2
77.11+24.82+29.3888.61-13.61+39.554.57-2.33-1.54
90-(8.78-0.4)71.7-(22.1-2.6)7.97-5.54+1.1
一、口算。
6.8-0.8=6.5+4.9=0.87-0.35=8.5-0.3=
7.2+0.6=8.7-2.5=0.65+0.21=1.9-0.3=
7.1-0.5=6.7-4.6=0.63+0.11=6.1+0.1=
3.5+0.9=7-4.7=0.78-0.01=1.7+0.9=
3.2+0.9=8.8+1.5=0.76-0.45=6.8+0.8=
7.9-0.4=8.2-3.5=0.88-0.43=6.4+0.9=
1.9-0.7=8.8-3.4=0.79-0.13=2.5-0.4=
7.3-0.8=8.7-1=0.72+0.37=9+0.2=
二、混合运算。
0.6+0.41+9.35.4-0.11-1.8955.4-11.1+15.1
86.36-17.06+53.6368.17-24.45+88.388.5+1.73+1.6
60-(7.73-0.98)82.5-(29.2-8.5)7.25-4.04-1.29
一、口算。
2+0.6=7.5-1.5=0.88-0.44=6.6+0.1=
6.4+0.2=7.4+1.4=0.61+0.33=4.2-0.8=
8.2+0.6=7.2+3.8=0.68+0.35=6.1-0.5=
6.6+0.7=6.2-1.3=0.71+0.14=8.9+0.7=
8.2+0.6=6.3+2=0.72+0.31=6.7+0.1=
3.9+0.1=7.5+3.5=0.64+0.28=3.9-0.9=
1.1-0.1=7.9+0.4=0.71-0.11=5.2-0.9=
8.7-0.4=6.6+3.9=0.63-0.17=2.9+0.8=
二、混合运算。
0.85+0.32+0.58.4-0.8-0.244.7-26.7+13.9
89.7+31.54+96.866.66+14.53+95.136.82+3.56+2.27
30-(5.75-0.42)63.5+(18.5+6.8)3.51-1.48+1.94
一、口算。
8.7+0.5=7.9+2=0.83-0.1=8.8+0.1=
4.8-0.8=7.1-1.9=0.83+0.25=3.7-0.7=
7.9+0.5=8.8+3=0.74-0.04=6.1+0.1=
4.2+0.8=6+1.9=0.83-0.07=5.6-0.4=
1.5-0.4=8-4.5=0.61-0.02=1.5-0.5=
7+0.1=8.2+1.2=0.82+0.07=5.5+0.4=
4.5-0.2=7.7-2=0.65-0.32=7-0.7=
2.2-0.7=8+1.6=0.66+0.29=5.3-0.3=
二、混合运算。
0.88+0.46+2.95.6-0.26-0.7469.6+43.4-24.7
88.41+32.53+25.1482.23+35.17+94.083.73-1.55+2.16
90-(7.36-0.43)72.3+(10.4+2.7)9.55+6.11+1.28
一、口算。
7-0.4=8.6+2.2=0.78+0.43=5-0.5=
4.3+0.3=7.9+2.7=0.63+0.44=1.4-0.2=
1.9-0.3=7.8-1.2=0.63-0.2=3.5+0.1=
7.7+0.6=7.7+3.9=0.62-0.41=7.2-0.1=
2.1+0.3=6.6+4.1=0.83+0.42=8.8-0.5=
7+0.9=8.4+0.3=0.75+0.42=7.4-0.2=
5.7-0.4=7.6+4.9=0.87-0.26=1.1-0.4=
6.4-0.2=8.6-0.2=0.85-0.3=2.6+0.2=
二、混合运算。
0.75+0.26+2.29.1-0.56-3.4447.6+26.7+17
61.43-39.15+46.6686.75-18.45+20.646.99+2.72+3.13
30-(8.52+0.68)60.6+(22.3-2.8)9.34-1-7.7
一、口算。
3.6-0.8=8.2+4.9=0.77+0.41=7.2-0.6=
8+0.4=6.5-4=0.76-0.31=1.8-0.3=
4.7+0.7=8.4-3.3=0.87-0.44=8.1+0.5=
7.9+0.2=8.6-1.9=0.79+0.03=3.2+0.9=
4.6-0.7=8.8+0.4=0.75+0.11=2.5+0.5=
5.3-0.6=8.8+4.1=0.64+0.19=1.3-0.5=
2.2+0.6=8.8-0.4=0.83-0.42=3+0.6=
5-0.1=7.1-1.8=0.85+0.26=6.7+0.8=
二、混合运算。
0.65+0.43+6.67.9-0.86-3.1459.4-22.3+22.2
85.67+28.36+47.573.59-34.67+72.553.68+1.61-1.29
70-(9.6-0.96)73.1+(20.6-1.8)9.93-4.28+3.75
一、口算。
4.6-0.3=7.3+2.5=0.77-0.33=3+0.8=
8+0.2=8.5-0.1=0.61-0.36=2+0.7=
3.2+0.7=7.3+1.1=0.76-0.25=1.6-0.8=
6.8+0.7=6.8-1.6=0.75+0.29=5.7+0.4=
8.9-0.3=8.8+0.1=0.61+0.18=2.2-0.2=
2.7+0.4=7.9+1.4=0.8-0.42=4-0.4=
5-0.1=7.4+1.1=0.79+0.18=8.4+0.1=
5.2+0.5=8.4+2.4=0.9+0.04=1.6+0.8=
二、混合运算。
0.65-0.14+87.2-0.35-1.6548.7+20.5+24.4
77.68+33.49+69.1465.35-21.74+42.259.64-3.12-6.2
80-(7.84+0.57)73.9+(16.7+1)4.11+1.87+2.16
一、口算。
3.6+0.1=7.9+4.7=0.66+0.27=1.2-0.2=
1.8-0.2=8.8-1.1=0.85-0.2=7+0.2=
6.7-0.8=7.1+0.7=0.73-0.38=7.2-0.8=
7.7+0.1=7.2+2.7=0.85+0.29=9-0.8=
2.3-0.5=6+4.9=0.9-0.19=6.4-0.6=
3.2-0.4=8.4+3.1=0.74+0.41=2.3-0.5=
5.8-0.4=7.1-1.2=0.73-0.06=3.2+0.7=
8.5+0.6=8.2-2.4=0.83+0.13=6.6-0.9=
二、混合运算。
0.71+0.14+7.17.5-0.66-3.3468.1+43.5-10.1
62.65-13.32+34.365.66+17.09+74.65.3+1.5+2.88
70-(4.09-0.67)73.3+(13-3.1)4.91+3.06+1.29
一、口算。
8.8+0.7=8.6-1.4=0.77+0.14=7.3+0.5=
1.2-0.1=6.7-4.3=0.69+0.45=3.1-0.2=
5-0.9=8.8-3.8=0.75+0.23=1.2-0.3=
8.3-0.1=8+2.8=0.88-0.17=3.3+0.5=
2+0.2=8.9+2.5=0.63-0.11=2-0.6=
3-0.5=6.9+4=0.78+0.41=2.7-0.4=
2.8-0.1=6.6+1.1=0.64+0.49=5.5-0.3=
2.6-0.3=6.8-0.3=0.6+0.43=6-0.1=
二、混合运算。
0.88+0.47+1.39.9-0.89-1.1173.6-17.7-19.7
78.27-35.28+90.1579.42-20.99+13.687.61-1.92+5.49
90-(6.1+0.24)92.2-(22.3+1)3.72-1.63+1.3
一、口算。
2.7+0.3=8.2+2.7=0.87-0.35=8.1+0.4=
8.4+0.2=7.9+4.4=0.89-0.33=3.5+0.7=
2.2-0.5=6.2-1=0.69-0.47=2.9-0.1=
9+0.5=6.2+1.3=0.73+0.25=3.7+0.3=
8.7+0.1=7.8-3.9=0.66+0.22=5.4+0.2=
4.8-0.2=8.6-0.8=0.83-0.12=4.6-0.2=
3.5-0.2=6+4.9=0.72+0.36=7-0.3=
3+0.9=8.2+2.2=0.78-0.19=8.5+0.7=
二、混合运算。
0.81-0.12+7.85.2-0.3-4.756.7+22.4-20.4
86.32-17.44+54.4661.66-36.14+18.318.87-5.79-2.45
70-(7.42+0.13)72.9+(24.8+8.2)5.59+3.76-1.56
一、口算。
8.6-0.7=7-1.8=0.67+0.47=4.3+0.6=
7.6-0.2=8.3-0.3=0.89+0.12=5.8-0.4=
6.4+0.2=6.7-3.3=0.6-0.1=7.7+0.3=
8.3-0.3=6.1+0.9=0.74-0.44=4.5+0.7=
1.9+0.2=7.1-1.4=0.82+0.22=3.9+0.1=
4.1-0.3=6.7-2.2=0.79+0.21=4.7-0.2=
8.4+0.3=8.2+2.3=0.67-0.04=5.4+0.1=
6.7-0.5=8.2-4.4=0.78+0.06=1.7+0.1=
二、混合运算。
0.74-0.15+6.45.3-0.18-4.8278.8-50.8+17.1
81.13-36.36+99.8177.42-27.37+79.848.09+4.07-1.63
80-(2.98-0.6)64.2+(21.5-9.6)4.15-1.37-2.15
一、口算。
2-0.1=7.8-4.6=0.87-0.25=7.6-0.3=
1.9-0.1=7.1-2.7=0.64-0.12=2.7+0.2=
1.8+0.5=8.4-4.8=0.65-0.44=6.8+0.3=
2.4-0.1=8.3-1.8=0.75-0.13=8.7+0.8=
4.2+0.3=8.8-2.1=0.74-0.32=3.7-0.3=
5.2-0.5=6.9-1.3=0.61+0.24=6.2+0.6=
4.9+0.1=8.5+0.7=0.7-0.39=7.9+0.9=
4.4+0.8=8.7-2.9=0.65-0.23=4.7+0.8=
二、混合运算。
0.6+0.14+4.59.5-0.17-3.8340.2-10.7-13.6
69.94-35.15+16.2867.58-18.1+26.557.28-4.26+1.78
70-(4.82-0.21)72.8+(21.2+4.5)5.77-3.21-2.29
一、口算。
8.5-0.4=7.8+0.1=0.72-0.31=3.9+0.4=
5.7-0.2=7.7+1.8=0.88+0.41=8.1-0.5=
7.2+0.6=8.9+3.8=0.87+0.12=8.9+0.4=
2.6-0.7=6.1-1.2=0.79+0.29=1.3-0.8=
7.3+0.8=6.9-1.1=0.85+0.33=4+0.4=
6.2-0.5=7.2-3.2=0.78+0.19=2.8+0.2=
9+0.2=6.6+4.5=0.69+0.12=7.4-0.2=
8-0.6=7.2-1.3=0.86-0.27=2.5-0.2=
二、混合运算。
0.7-0.33+7.28.7-0.11-0.8935.8+10.5+17.2
72.05-25.71+21.2261.58+12.3+48.046.88+1.31+4.71
60-(3.91+0.64)70.7+(28.9+5.7)6.03+1.82+1.38
一、口算。
3.3-0.5=6.2-0.7=0.63+0.3=8.4-0.3=
8.3+0.6=7.3-1.2=0.85+0.1=2.3+0.1=
2.9-0.3=7-3.