人教版四年级数学下册小数加减法混合运算专项练习题104.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104.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104
一、口算。
6+0.1=7.2-3.6=0.61-0.35=4.4+0.4=
1.1+0.7=6+4.8=0.87-0.39=5.4-0.3=
5-0.3=8.5-2.6=0.77-0.48=6.7-0.8=
5.2-0.8=7.6-1.3=0.62+0.32=1.3+0.6=
6.1+0.3=7.6-4.8=0.75-0.24=8.3-0.9=
6.1+0.1=8.5-2.4=0.9+0.06=4.8-0.2=
3.5-0.8=8.8+1.5=0.73+0.33=7.9+0.4=
8.9+0.2=7.7-3.1=0.84-0.06=4-0.2=
二、混合运算。
0.74-0.44+3.48.8-0.61-2.3952.4-34.8-16.9
78.17+17.6+98.6878.76-43.12+339.55-5.32-2.98
40-(5.2+0.6)63.3-(19-4.3)7.38-5.88+1.16
一、口算。
4.1-0.9=6.2-1.2=0.66+0.17=1.9-0.3=
5.7+0.4=7-0.5=0.8-0.22=8.9-0.3=
6.4+0.6=8.8+1.2=0.75-0.37=5.9-0.3=
8.3+0.3=7.2-4.4=0.9+0.34=4.7-0.1=
4-0.8=8.2+2.4=0.87+0.04=8.5+0.6=
6.6-0.4=8.6-0.8=0.86+0.18=5.9-0.1=
1.4-0.2=6.1-1.3=0.64-0.21=7.9-0.6=
2.4-0.6=8.9-4.7=0.63+0.36=6.5+0.1=
二、混合运算。
0.7+0.25+3.66.4-0.81-2.1965.5+19.2+12
64.9-34.59+23.3784.19+19.2+67.916.62+2.47+2.19
20-(5.91-0.75)82.9-(15.7+1.2)5.36-2.76-2.11
一、口算。
6.1-0.3=7.5-1=0.79+0.36=5-0.2=
4-0.6=8.8+3.4=0.89-0.27=7.5+0.7=
7-0.8=7.2-0.3=0.6-0.29=7.4+0.9=
1.2+0.5=7.7-3.5=0.64+0.14=4-0.9=
5.5-0.8=6.6+0.8=0.88-0.49=5.3-0.8=
8.7-0.9=6.7+1.4=0.88+0.01=8.7+0.6=
3.6-0.5=6.8-3.8=0.89-0.23=6.9-0.9=
8.1-0.5=6.3+4.9=0.65-0.24=1.9-0.7=
二、混合运算。
0.73-0.07+0.19-0.22-4.7876.1-34.7+36.2
76.12+22.69+61.883.24-29.69+88.24.62+1.56+2.09
90-(6.7+0.34)73.9+(20.1-5.5)6.65+1.57+2.42
一、口算。
1.6+0.5=6.9+4.1=0.83-0.19=7.2+0.1=
3.1-0.4=8.6-4.9=0.63-0.07=8.6-0.2=
6.8+0.5=6.1+1.1=0.74-0.1=4-0.7=
5.7-0.8=7.4-0.7=0.7-0.22=7.8-0.7=
3.6-0.6=6.6+0.1=0.71-0.13=3.7+0.7=
4.1+0.6=8.3-3.3=0.69-0.12=7.1-0.4=
2.2+0.1=8.8+1.9=0.64+0.28=7.6+0.7=
4.7+0.9=8-3.9=0.7-0.06=8.5-0.7=
二、混合运算。
0.84+0.49+1.16.9-0.86-1.1443.5-19.1-12.9
77.63+29.94+21.5761.89-24.84+10.064.77+1.61+2.97
20-(4.93-0.49)83.5+(13.9-7)4.05-2.11-1.55
一、口算。
7.3+0.2=8+2.8=0.75+0.04=2-0.2=
3.3-0.3=7.2-4=0.83-0.33=7.6-0.7=
8-0.6=7.9+1.7=0.82-0.05=2.5+0.7=
4.5+0.2=7.7-3.5=0.68+0.1=1.5+0.1=
4.9+0.4=7-2.6=0.63-0.05=2.3+0.3=
3.7-0.3=7.7+4.5=0.76-0.1=7.1-0.3=
8.1+0.4=6.8+2.4=0.82+0.47=5.5+0.2=
7.3-0.9=7.3-2=0.72+0.49=5.4-0.3=
二、混合运算。
0.86+0.32+0.89.3-0.87-2.1350.6-32.2+14.9
62.65+37.97+12.5161.94+10.22+92.465.82+1.72-1.61
90-(4+0.2)87.5-(28+9.4)6.64+1.83-3.84
一、口算。
3.4+0.8=7.3+4=0.6+0.39=4.9+0.5=
2.2-0.9=6.6+2=0.86-0.34=7.6+0.2=
2.5-0.7=6.5-4.1=0.61+0.48=2-0.4=
1.3-0.7=7.4+1.3=0.89-0.43=8.6-0.5=
3.9-0.2=7-0.4=0.63-0.04=2-0.6=
4.3+0.6=9+3.4=0.6+0.22=8.5-0.4=
3.6+0.4=7.3+0.6=0.68-0.47=6.3+0.5=
5+0.2=7.4-0.5=0.73+0.02=7-0.5=
二、混合运算。
0.76+0.14+9.77.8-0.86-1.1466.8-48.9-11.9
63.52-17.99+56.878.96-12.57+67.927.29-2.07+3.59
80-(6.57+0.34)77.7-(20.8+3.8)9.12+4.37-4.48
一、口算。
6.4-0.1=7-0.4=0.89-0.24=4.5+0.1=
4.7-0.6=7.7-3.7=0.86-0.44=9-0.9=
5.5-0.1=8.7+4=0.81+0.01=7.4-0.6=
6.1-0.5=8.8-4=0.69+0.07=4.2+0.6=
5.9+0.2=8.2-2.4=0.82+0.22=3.1+0.6=
3.7+0.9=7.3+0.4=0.71+0.47=4.6-0.4=
1.1-0.8=7.2+2.8=0.87+0.48=3+0.7=
5.1+0.2=8.2-2.9=0.6-0.36=7.9+0.2=
二、混合运算。
0.61-0.43+7.75-0.59-0.4179.8+31.5-27.1
72.2-10.62+98.8766.04+46.56+84.136.18+2.59-3.07
80-(1.16-0.49)79.1-(14.5-6.2)4.82+2.61+2.15
一、口算。
5.3-0.4=8-2.2=0.73-0.39=8.8+0.3=
4.8+0.1=6.9-3=0.87+0.2=6.7+0.9=
2.6+0.5=8.1+2.6=0.79-0.38=4.3-0.4=
4.1-0.9=8.5+0.2=0.81-0.15=2.2+0.7=
2.8+0.1=6.4-2.5=0.63+0.24=5.4+0.6=
8.5-0.6=7.4+3=0.7-0.46=4.9+0.7=
8.5+0.3=7.9+4.8=0.76-0.44=2+0.2=
6.7-0.5=8.2+1.4=0.83+0.2=8.2-0.8=
二、混合运算。
0.69-0.16+85.5-0.67-2.3366.1-32.9+14.1
63.52-31.64+49.7288.23-18.24+32.098.12+1.08-1.2
60-(3.78+0.36)78.9+(18+4.7)4.19-1.64+2.52
一、口算。
5.2-0.9=8.3+0.8=0.79-0.28=6.5-0.3=
7.4+0.4=6.2+2.4=0.66+0.12=2.2-0.4=
4-0.5=8.4+3.5=0.68+0.34=2.3+0.1=
2+0.3=6.1-0.7=0.61+0.38=7.4+0.2=
8.4+0.6=7.2+0.5=0.74+0.48=6-0.1=
7.2+0.8=6.9+0.4=0.62-0.46=7.6+0.5=
3.5+0.9=8.7+2.2=0.63+0.11=7.1+0.6=
2.9-0.7=7.3-0.5=0.67-0.48=7.3+0.1=
二、混合运算。
0.76+0.47+9.27.3-0.76-4.2441-15.6-24.1
72.58+24.76+25.1571.39+10.9+17.764.83+1.13-2.8
20-(6.42-0.99)73.1-(27.4+7)7.66+3.93+2.31
一、口算。
1.8-0.5=7.8+4.5=0.82+0.26=1.3+0.8=
3.8+0.7=8.3-4.3=0.65+0.36=6.6+0.3=
2+0.1=6.5+2.3=0.73-0.3=4.8-0.8=
5.7-0.5=7.5+3.1=0.72-0.35=7.8-0.5=
1.7-0.9=6.9+1.7=0.75+0.01=1.1-0.1=
2.1+0.5=6.4+2.3=0.85-0.05=8.7+0.4=
2.4+0.9=9+1=0.6+0.49=3.7-0.8=
7.5+0.4=8.4+0.9=0.72+0.13=3.2+0.9=
二、混合运算。
0.65-0.1+4.27.8-0.54-3.4676.9-59-10.7
78.47-44.08+81.880.7+44.25+48.286.11-3.62+2.41
80-(1.41+0.84)86.1+(24.2-8.1)4.12-1.19-1.49
一、口算。
6.6+0.1=6+0.7=0.82-0.06=6.4-0.9=
5.8+0.1=7.4-4.2=0.68-0.29=1.9+0.5=
7.2+0.8=6.1-0.8=0.81+0.34=1.9-0.3=
7.8+0.6=7.4-3.2=0.88+0.38=1.1+0.8=
1.8-0.1=7+4=0.64-0.16=4.6-0.8=
8.6-0.5=7.6-3.7=0.6-0.38=1.7+0.4=
8.5+0.9=7-0.4=0.8-0.48=2.4-0.3=
3.1+0.4=8.4+1.3=0.71-0.06=8.1+0.4=
二、混合运算。
0.79+0.34+1.49.1-0.2-1.875+58.5+11.5
70.96+38.56+42.3661.42+44.82+40.498.36+2.18-2.57
60-(4.87+0.83)77+(10.4-3.1)4.13-1.78-1.35
一、口算。
4.5-0.9=7.8-2.6=0.76+0.24=3.8-0.2=
1.6+0.3=8.6+2.9=0.78-0.39=5.9-0.6=
4+0.7=7+2.3=0.73+0.4=2.4+0.6=
3-0.4=7-4.1=0.8-0.1=2.3+0.9=
2.3+0.1=6-1.2=0.72+0.06=5.7+0.9=
9-0.4=8.3-3.5=0.68-0.43=3.3-0.7=
7.3-0.8=8.8+3.9=0.88+0.35=6.2-0.4=
8+0.4=7.3-3.8=0.87+0.24=7.8+0.7=
二、混合运算。
0.83+0.09+5.28.6-0.26-0.7477.8-49.2-16.1
73.52-34.59+17.6772.23-30.86+16.885.8+2.26-2.59
30-(3.82+0.86)63.8-(25-4.2)8.38-3.39+2.19
一、口算。
5-0.8=6.9-4.3=0.63-0.17=4.5+0.7=
6.9+0.4=8.4+3.8=0.73-0.01=7.8-0.9=
5.4+0.9=6.9+3=0.71-0.47=3.3+0.5=
2.4+0.5=9-1.4=0.85+0.43=3.6+0.4=
6.5+0.5=6.7+3.7=0.8+0.44=6.1+0.1=
8.5+0.1=7.8+3.7=0.82-0.28=3.1-0.4=
2.8+0.3=7.9+2.1=0.83+0.12=4.7+0.3=
9+0.9=6.6-3.2=0.65-0.21=7.9-0.3=
二、混合运算。
0.71-0.2+8.96.9-0.87-4.1379+19.4+57.1
83.47-41.71+65.188.49-21.03+81.895-2.94+2.04
80-(6.73-0.39)62.4-(26.7-2.6)7.93-1.92-1.73
一、口算。
8.9+0.1=7.6-0.8=0.65-0.02=4.5-0.9=
8.9+0.8=6.9-3.5=0.73-0.39=2.4+0.6=
8.4-0.1=8.3+3.9=0.82-0.48=6.9+0.4=
5.3-0.2=7.4-2.5=0.86+0.12=6.3+0.6=
6+0.6=7.6+2.3=0.75+0.04=4.9-0.3=
9-0.1=6-2=0.81+0.48=1.8+0.2=
7.9-0.9=6.9+2.9=0.85-0.39=6-0.5=
9+0.9=7.2-1=0.69+0.08=8.5+0.4=
二、混合运算。
0.88+0.23+17.6-0.65-4.3580.7+62.9+17.7
64.56-45.06+66.3971.72+17.67+65.735.53+1.89-2.95
70-(2.29+0.67)68.5-(24.5-6.4)8.51+3.49+3.39
一、口算。
3.6+0.7=7.2+4.3=0.68+0.4=1.5+0.4=
5.1-0.7=7.3-4.1=0.8-0.29=9+0.9=
2+0.1=6.9+3.6=0.7-0.24=2.3+0.5=
4+0.9=6.2-3.4=0.68-0.01=8.1+0.6=
6.3-0.6=7.3-3.3=0.88-0.45=6.4+0.1=
5.9+0.6=7.2-2.5=0.76-0.39=3.7+0.6=
8.2-0.6=8.2+4.1=0.66+0.46=1-0.5=
3.1+0.9=8.5+2.9=0.75-0.12=1.6+0.5=
二、混合运算。
0.9+0.32+9.79.5-0.29-2.7178.1-42-31.2
61.83-46.26+13.3979.47-35.01+35.39.21-7.55-1.21
70-(4.3+0.63)84+(20.6+2.3)4.67+2.59+1.09
一、口算。
4.9+0.3=7.8-3.2=0.88+0.48=4.4+0.5=
5.9+0.3=6.3-1=0.86+0.14=2.3+0.7=
7.9+0.2=8.6+3.1=0.71-0.42=5.7-0.4=
6.6-0.1=8.6-3.5=0.66+0.2=2.9-0.1=
7.4-0.5=8.4+4.7=0.8+0.19=7.7+0.4=
9-0.7=6.8+1.1=0.87-0.47=4.4+0.9=
8.8-0.9=6.2+1.5=0.88+0.34=2.4-0.4=
2.8-0.3=8.8-3.6=0.88-0.06=3.7-0.1=
二、混合运算。
0.64-0.43+69.7-0.26-1.7450.2-34.5-10
82.14+16.56+84.5583.3+37.86+43.048.02+4.74+1.83
50-(2.94-0.54)75.2-(18.7+8)6.97-1.08-4.96
一、口算。
2.2+0.8=6.1-1.3=0.65+0.34=7.6-0.2=
8.3+0.9=7.4+4.1=0.76+0.02=7.2-0.2=
6.2-0.8=7.6-0.9=0.62-0.39=4.3-0.1=
1.9-0.3=8.1-4.8=0.62-0.4=8.4+0.6=
4.6-0.6=6.6+1.2=0.75+0.36=6.6+0.1=
7.5+0.8=6.7+1.3=0.8+0.01=8-0.2=
5.6-0.5=8.3+0.1=0.7+0.12=1+0.5=
5.4+0.6=7.1-0.6=0.78+0.23=6.7-0.5=
二、混合运算。
0.61-0.28+6.75.1-0.59-2.4162.8-35.3+12.1
85.96-44.09+90.7682.7-21.91+58.445.41-2.44-1.23
60-(3.44-0.89)70.8+(28.5+1.2)7.66-6.01+1.06
一、口算。
4.8-0.6=8-2=0.82-0.36=7.2-0.6=
1.6-0.5=7.2-4.8=0.61+0.14=3.2-0.5=
4.5-0.5=8.1+2.4=0.69-0.07=6.8-0.4=
3.9+0.8=6.3+1.2=0.67-0.47
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