人教版四年级数学下册小数加减法混合运算专项练习题60.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60
一、口算。
3.9+0.4=6.7+3.4=0.87-0.37=7.2+0.7=
8-0.5=7.6-0.3=0.83+0.44=6.7+0.3=
8+0.5=7.7-0.6=0.81-0.38=7.7-0.7=
6.2-0.5=8.1+0.5=0.75+0.3=6.9-0.5=
3.6+0.6=8.3-2=0.83+0.19=4+0.3=
2-0.8=8.8+1.8=0.67+0.39=1.7-0.3=
2.8+0.2=7-1.6=0.77-0.3=7.8+0.2=
3.4+0.7=6.7+3.3=0.83+0.13=8.9+0.1=
二、混合运算。
0.78+0.11+0.46.2-0.15-4.8548.9+28-15.3
63.14-39.1+11.2582.3+28.31+97.947.49-3.64-2.07
40-(5.86+0.4)95.9+(12.8-1.8)7.59-2.89+2.81
一、口算。
6.9+0.9=7.8+3.9=0.87+0.2=8.8+0.9=
6.3-0.2=6.6-1.9=0.86-0.48=6+0.6=
9-0.5=6.5-2.9=0.62+0.33=1.9-0.5=
2.9-0.4=6.7-0.5=0.82-0.09=8+0.1=
4.3-0.4=8.7-1.6=0.78-0.08=5.4+0.8=
8.7-0.6=6-2.3=0.79-0.08=1.5+0.6=
7+0.5=7.5-4.5=0.63-0.46=3.9-0.6=
7.9+0.4=7.5-0.9=0.75+0.27=4.9-0.4=
二、混合运算。
0.83-0.05+8.86-0.67-3.3343.2+26.4+14.1
63.57-47.54+30.3888.52-38.49+49.275.66+1.33-2.32
70-(1.35-0.5)92.7-(18.5+6.3)8.16-4.61+1.05
一、口算。
5.9+0.4=8.7-3.3=0.72+0.25=6.8+0.6=
6.4-0.6=8.6+0.4=0.61+0.02=7-0.9=
9-0.4=8.3+3.6=0.72+0.28=7.5+0.3=
3.9-0.1=8-2=0.78+0.08=8.6+0.8=
4.7-0.4=6.7-3.1=0.65-0.48=5-0.7=
9+0.2=7-3.5=0.9+0.49=4.9+0.1=
3.3+0.4=7.2+4.3=0.75+0.37=1.2-0.2=
7.3+0.1=6.1-4.5=0.81-0.23=3.5+0.4=
二、混合运算。
0.8+0.15+8.49.8-0.78-1.2265.2+49-11.5
86.78+13.93+74.9968.19+35.65+59.218.09-6.14-1.74
80-(7.92+0.4)92.9+(17.9+4.7)5.47-3.14+1.51
一、口算。
6.4-0.6=7.3+0.5=0.62+0.28=6.7-0.3=
2.5+0.5=6.9+2.7=0.7-0.33=4+0.2=
5.3-0.8=7.3-1.7=0.65-0.36=7.9-0.7=
1.5-0.6=6-2.1=0.82-0.24=2.4-0.2=
5.2-0.8=7-4.3=0.75+0.01=8+0.9=
3.3+0.7=7.1+4.6=0.87+0.21=1.8-0.2=
3.4+0.3=6.7+3=0.86-0.18=3.1+0.6=
3.7+0.5=7.7-1.3=0.86-0.3=5.1-0.4=
二、混合运算。
0.76+0.28+4.16.9-0.18-2.8287.2+54.7+26.4
89.01-31.14+61.4879.47-34.33+44.386.75+3.52+2.22
20-(6.6-0.66)89.5-(16.7-7.5)4.53-1.45-1.11
一、口算。
8.1-0.5=6.3+0.6=0.7+0.49=6.7+0.1=
6.2-0.2=8.9+1=0.79-0.41=7.3+0.8=
4.9+0.7=6.1-3.2=0.85-0.2=3.6-0.5=
2.3-0.5=6.8-3.3=0.78+0.19=5.8+0.9=
2.4+0.5=7.2-4.6=0.6-0.34=3.5+0.7=
5.9-0.2=8.4+3.1=0.71+0.01=8.2+0.7=
8.7+0.6=7.4-1.6=0.71+0.26=4-0.9=
7.6-0.2=6.6-4.2=0.72+0.37=2.1+0.7=
二、混合运算。
0.66-0.06+7.77.1-0.12-3.8881.1-54.9-14
84.06+33.71+51.6363.19-42.13+29.434.01+2.12-1.5
60-(3.45+0.65)77.2+(27.4+9.4)9.01-2.44+2.51
一、口算。
4.6+0.2=7+1.5=0.74+0.31=4.5+0.5=
1.4+0.8=6.7+0.4=0.87+0.18=4.9+0.6=
3.6+0.3=7.5+3.9=0.71+0.03=6.3-0.2=
1.1-0.2=8.5-3.4=0.78-0.41=3.1+0.1=
6.9+0.8=6.7+1.4=0.85-0.45=7+0.3=
2.3+0.6=6.5-3.8=0.7+0.11=4.5-0.2=
2.8-0.4=8.4-1.3=0.72-0.4=4.9+0.4=
8.4+0.8=6.1-3=0.64-0.4=9-0.6=
二、混合运算。
0.76+0.16+4.66.8-0.51-2.4995.8+24.1+19.1
79.52+35.94+17.6181.6-45.96+66.268.82+6.76-1.61
70-(4.94+0.67)97.9+(15.9+3.1)7.57-2.34-3.83
一、口算。
3.8-0.4=8+2.8=0.77+0.28=4.1+0.3=
6.9+0.1=6.8+2.9=0.85-0.17=2.1+0.3=
2.5-0.7=8-2.3=0.61+0.37=3.5-0.7=
3-0.9=8.3-3.4=0.62+0.15=1.7-0.3=
2.1+0.5=7.2+1.3=0.63-0.31=1.2+0.8=
5+0.4=6.6+1.3=0.89+0.12=5.2-0.9=
9+0.3=6.4-3.8=0.65+0.22=2-0.6=
8.8+0.6=8.3-0.5=0.88-0.27=5.4-0.3=
二、混合运算。
0.65-0.1+4.86.1-0.89-0.1144.4+18.8+11
71.46-33.2+80.7179.82+11+16.258.49-4.69-2.52
20-(5.31-0.75)72.3+(16.1-1.7)8.31+2.81+5.24
一、口算。
7.6-0.2=7.6+3.5=0.71-0.41=4.4-0.4=
3-0.5=6.9+1.8=0.79+0.23=5+0.7=
1.1+0.7=8+0.2=0.85+0.03=1.1+0.1=
2.5-0.3=6.1-0.3=0.88-0.26=4.6-0.1=
1.4-0.8=7.1+4.3=0.6+0.28=2.2+0.7=
8.6+0.5=8.7+1.7=0.9+0.18=7.7-0.9=
5+0.7=7.5+3.7=0.84-0.49=3.5+0.1=
6.8-0.6=8.3-2.2=0.67-0.02=3-0.1=
二、混合运算。
0.78+0.49+1.18.4-0.11-0.8964.9+43.8-15.2
88.54-29.5+75.4678.26-42.88+47.917.46+4.38+2.07
40-(8.04+0.72)93.1+(24.8+1.8)9.19+5.27+2.91
一、口算。
3.7+0.7=6.7-0.5=0.73+0.47=5.1+0.5=
6.9+0.3=6.1-2.4=0.63-0.18=1.5-0.9=
2.6-0.5=6.4-4.6=0.72+0.33=6.5+0.9=
9-0.2=9-4.5=0.68+0.25=6.6-0.5=
1.1+0.5=6.4-1=0.64+0.15=8.6-0.5=
2.3+0.3=8.6+3.9=0.75+0.13=6+0.3=
7.1-0.2=8-4.8=0.63-0.39=2.7+0.3=
6.7-0.7=7.7+2.2=0.62+0.45=8.4-0.6