人教版四年级数学下册小数加减法混合运算专项练习题53.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53.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53
一、口算。
5.5-0.6=7.1-3.3=0.69+0.33=1.7+0.5=
4.4+0.6=7.2-3=0.71+0.27=6.4-0.4=
1.1-0.1=7.5-0.9=0.71-0.12=4+0.6=
1.8+0.1=6.1+1.9=0.9-0.36=5.6-0.7=
8+0.3=7.2-2.8=0.71-0.02=1.1+0.9=
3.5-0.3=7.8+4.1=0.66+0.33=8+0.1=
6.9+0.8=6.6+1.1=0.66-0.37=8-0.6=
8.8-0.7=7.7-0.6=0.73-0.43=2.4+0.4=
二、混合运算。
0.82-0.32+2.15.9-0.5-2.559.2-21.3-22.6
60.51-46.81+43.7374.26-22.47+81.784.95-1.55+2.14
50-(1.27+0.23)93.2-(24+1.7)8.27+5.48-2.4
一、口算。
2.5-0.9=7.4+0.6=0.75+0.43=3.9+0.1=
2.7-0.4=6.1-2.5=0.65-0.13=4.5-0.6=
8.5+0.1=8.3+3.1=0.8-0.06=1.6+0.5=
1.2+0.3=6.3+2.2=0.78+0.35=2.2+0.2=
3.4-0.6=6.4-1.3=0.68+0.49=2.1-0.9=
8.2+0.4=6.9-2.9=0.9+0.11=4.9+0.1=
4.5-0.7=6.5-3.7=0.68-0.42=5.2+0.6=
8+0.7=6.2-3.7=0.86+0.01=8.4-0.3=
二、混合运算。
0.86-0.08+8.66.8-0.73-0.2777.8+51.8+17.9
73.6+44.24+90.5887.12-17.91+82.84.38-1.5-1.27
70-(9.79-0.94)85.9+(20.5+4.7)4.23-1.27+2.41
一、口算。
8.1-0.6=7.5-4.3=0.85-0.45=2.7-0.6=
6.8-0.9=7.4-4.6=0.86-0.06=2.3-0.6=
2.2-0.5=6.5-1.4=0.75+0.11=8.2+0.2=
8.5+0.8=9+0.7=0.76-0.19=6.4+0.8=
1.2+0.6=8.7-1.1=0.67-0.35=7.7-0.2=
3.6+0.1=8+4.2=0.69+0.49=1.3-0.2=
4-0.7=6.1+4.3=0.86+0.28=2.1+0.8=
7.1+0.4=6.9-0.2=0.64+0.46=1.7-0.5=
二、混合运算。
0.63-0.48+7.38.3-0.83-4.1765.4-20.1+16.1
86.14+28.64+59.8370.5+17.53+87.36.89+4.27-1.39
80-(7.12+0.65)97.2-(17.2+2.6)5.73+1.07-4.44
一、口算。
6.5-0.2=7.2+1.9=0.77-0.39=2.5+0.7=
7+0.9=8.1+1=0.86-0.11=3.3+0.1=
5+0.5=8.4+1=0.86-0.01=3-0.9=
7.9+0.5=6-2.1=0.61+0.46=3.1+0.7=
2.5-0.4=6.5+0.9=0.62-0.47=1.6+0.9=
4.8+0.4=8.8+2.5=0.64+0.34=8.5+0.2=
2.7+0.6=7.4+3=0.77+0.26=8.5+0.3=
8.3+0.3=8+4.7=0.73+0.23=1.2+0.9=
二、混合运算。
0.79-0.07+1.85.8-0.9-3.163.1-44-15.7
67.32-26.66+80.9671.7+47.74+17.57.72+4.36+2.9
40-(7.08+0.21)85.7-(10.9-5.3)7.92-3.02+4.84
一、口算。
6.3+0.8=9+4.9=0.83+0.38=7.1-0.1=
2.7+0.5=6.5+4=0.7+0.29=8.9+0.8=
6.7+0.7=8.1-4.8=0.82+0.25=3.9+0.1=
5.4+0.3=8.4+0.6=0.62-0.2=1.1+0.7=
8+0.1=7.8-0.5=0.88+0.12=3.6+0.9=
8.4+0.1=6.2+1.2=0.7-0.38=8-0.7=
4-0.3=8.2-3.3=0.62-0.4=4.5+0.8=
4.2+0.1=9+2.4=0.69+0.29=8.8+0.2=
二、混合运算。
0.72-0.38+0.97.8-0.87-0.1342.5+22.3-19.8
72.48+15.65+47.8179.17+12.47+14.398.38-5.32+1.04
90-(8.58-0.38)83.9-(11+2.6)6.43+1.47+3.79
一、口算。
6-0.7=6-1.3=0.63-0.22=5.4-0.5=
2.7-0.8=6-2.3=0.82-0.05=4.5-0.2=
8.2-0.7=6.9-1.2=0.67+0.41=6.5-0.7=
2.9-0.1=8.3-1.5=0.79-0.22=4.9-0.4=
3.5-0.7=7.8-2.5=0.71-0.02=6.3+0.7=
3.2+0.6=7.4+3.5=0.9+0.09=6.4+0.9=
5.8+0.5=8.4+4.3=0.74+0.05=3.6+0.8=
5+0.8=6.1-2.4=0.74+0.12=7.8+0.7=
二、混合运算。
0.71+0.04+8.16.8-0.83-3.1744.3-28.2-11.2
62.84+29.23+27.582.55+14.03+90.189.77-4.91-4.36
40-(4.76+0.36)73.7+(23.4+1.1)8.48-2.85+4.47
一、口算。
3.3+0.5=8.2+3.5=0.82-0.14=4.5-0.6=
7.8+0.1=6.2+3.1=0.85-0.37=8.8-0.2=
8.6-0.5=6.1-2=0.89+0.34=3.4+0.2=
1.4+0.7=8.6+2=0.62+0.12=8.6-0.6=
7.3+0.1=8.1-1.8=0.86+0.38=2.7-0.2=
2-0.3=7.5-1.1=0.62-0.04=6-0.1=
1.4+0.1=7.5+1.4=0.69+0.37=2+0.1=
1.2+0.8=8.5+4.9=0.76+0.42=4.6-0.3=
二、混合运算。
0.77+0.25+3.59.1-0.43-2.5786.7+46.5-37.4
79.46-32.34+38.3971.74-17.23+25.747.62+2.64+2.24
80-(3.63+0.27)82.1-(16.1-4.3)9.51+4.13-3.04
一、口算。
7.9-0.7=6.7+4=0.61-0.14=6.6+0.2=
3.4+0.8=8.8+1.2=0.67+0.24=7.7+0.3=
7.1+0.6=8.9-4=0.83-0.42=1.3-0.1=
7.4-0.2=7.8+1.5=0.69+0.3=1.2-0.9=
7.1-0.4=6.7+4.1=0.71+0.38=9+0.3=
4.6-0.1=6.5+2.8=0.85-0.22=3.6+0.2=
1.1-0.1=6-1.9=0.69+0.22=4-0.4=
5.7-0.2=6.4-0.2=0.63+0.03=1.7-0.9=
二、混合运算。
0.61-0.07+3.57-0.66-4.3452.9+10.2-31.9
88.26+40.45+37.4572.32+36.14+15.216.2+4.05+1.07
70-(1.07-0.49)62.9-(14.2+3.5)7.62+5.22+2.07
一、口算。
6.4+0.8=6.7-2=0.85+0.31=8.5+0.4=
2.4+0.6=6.5+4.6=0.89-0.09=6.9+0.1=
5.7-0.3=7.4-1.3=0.65-0.37=7.3+0.3=
6.9+0.2=6.3+1=0.88-0.18=6.8-0.5=
7.9+0.8=7.8-1=0.69+0.32=6.3-0.7=
5.2-0.8=7.2+0.1=0.85-0.29=7.8+0.9=
5.6+0.1=7.3-0.2=0.81-0.1=4.8-0.3=
7-0.9=6.1-2.5=0.84-0.16=7.7+0.9=
二、混合运算。
0.88+0.08+4.19.1-0.87-4.1394.7-55.7+23.3
73.56+31.45+74.2361.13+36.04+61.049.16+1.14+5.85
40-(1.4-0.57)69-(26.6-2.1)8.54-1.13-1.21
一、口算。
1.7+0.2=6.4-4.7=0.83+0.07=6.1-0.3=
8.6-0.3=6.8+0.9=0.75+0.09=2.5+0.6=
7.3-0.4=7.6+3.7=0.67+0.12=6.5+0.3=
1.3+0.6=7.5+3.3=0.6-0.4=8.5+0.1=
3.2+0.1=8-1.9=0.77+0.47=2.8+0.9=
5.2+0.7=6.4+3.7=0.85+0.35=3.8+0.1=
7.5-0.8=7.2+4.1=0.67-0.29=8.6-0.8=
2.8-0.5=7.2-0.2=0.71-0.27=1.2-0.8=
二、混合运算。
0.6+0.24+7.67-0.33-4.6773.6+33.3-16.4
71.66-37.82+83.4283.72+13.9+444.55+2.42-1.1
40-(2.82+0.56)88+(23.6-4.5)5.06+2.84+1.52
一、口算。
5.4-0.4=7.3-4.7=0.72-0.22=5.6-0.9=
6.6-0.5=7.6+3.3=0.86-0.36=7.4+0.1=
4.3-0.2=7.6-3.3=0.88-0.32=6.2-0.7=
3+0.8=6.3+3.8=0.65-0.05=2.6+0.5=
1.8-0.4=8.3-4.5=0.84+0.2=7.1-0.1=
4.8+0.4=7.3+0.6=0.68+0.43=3.3+0.9=
7.9-0.7=8.4+4.5=0.77-0.31=6.7+0.5=
8.1-0.7=9-3.2=0.81-0.04=5.9-0.2=
二、混合运算。
0.62+0.23+5.75.1-0.79-0.2173-26.4+15.5
60.94+33.35+95.8788.89-25.93+65.98.17-6.48+1.67
40-(8.11-0.91)67.5+(28.8-2.2)5.65+1.73+2.93
一、口算。
8.3+0.5=8.1-2.7=0.86+0.15=6.3+0.1=
2.3+0.8=6.6-1.4=0.85-0.01=6.6+0.2=
4.1+0.6=8.1-1.9=0.66-0.24=4.7+0.5=
4.1+0.4=7.8+0.5=0.6-0.19=6.1+0.8=
2.5-0.6=7.4+4.7=0.87-0.15=1.3+0.7=
1.8+0.8=6.5+0.8=0.86+0.37=7.4-0.3=
2.2-0.2=6.7-3.6=0.8-0.41=2.3-0.9=
2.9+0.3=9+0.6=0.76+0.28=4.7-0.1=
二、混合运算。
0.88+0.31+9.66.3-0.5-2.537.3-10.5+13.1
66.88-25.31+37.366.39-13.76+47.978.83-6.72-1.48
20-(4.05-0.33)91.5-(22.6+1.9)6.63-4.1-2.43
一、口算。
8.9+0.5=6.7-4.4=0.86+0.12=4.3-0.7=
4.9+0.1=7.3+0.2=0.83-0.13=2.5-0.7=
7.5-0.7=6.4-3.9=0.67+0.37=5.2-0.6=
5.5-0.9=6.9+2.2=0.71+0.06=2.8+0.2=
6.8-0.2=6.2+3.9=0.89+0.25=8.3+0.1=
2.5-0.3=8.9-3.7=0.8-0.09=2.1+0.2=
7.3+0.4=7.9-1=0.85+0.24=1.7+0.1=
6.7-0.3=8.2-1=0.73+0.07=1.5-0.2=
二、混合运算。
0.66+0.12+5.89.6-0.34-1.6667.2+20.5-17
60.76+12.21+98.0384.34+23.39+65.394.63+3.02+1.19
40-(2.91+0.13)67.4+(16.3+4.4)7.09+1.45+2.72
一、口算。
1.1+0.3=6.9+0.1=0.65-0.31=7.5+0.6=
8-0.5=7.7-3.3=0.69-0.49=6.1+0.1=
4.5+0.2=7.4-3.4=0.61-0.39=4.2+0.1=
6.9-0.6=8.1+1=0.68-0.41=8+0.4=
1.2-0.7=8.9-2.3=0.9+0.05=4.9+0.7=
3.2+0.6=6.9-3.1=0.86+0.41=3-0.7=
4.5-0.9=7.6-1.7=0.64+0.05=1.3+0.9=
1.5-0.3=6.6+4.1=0.85-0.27=4.8+0.3=
二、混合运算。
0.78+0.35+5.48.1-0.26-0.7481.6-39.6+11.5
65.02+46.51+49.0578.43+37.36+78.754.96+1.27-2
70-(4.65+0.68)79.7-(26.3+8)8.71-6.68-1.59
一、口算。
9-0.4=8.1-1.8=0.87-0.4=5.3+0.6=
5.5+0.5=7.3-1.8=0.63+0.49=6.9+0.8=
5.3+0.8=8.9+0.7=0.87+0.21=5.5+0.2=
1.5-0.4=6.7-2.7=0.69-0.03=1.6-0.2=
4.9-0.3=7.2-2.4=0.74-0.03=8.2+0.4=
1.3-0.5=7.7+2=0.7-0.07=3.9+0.7=
4.6-0.5=6.7-4.2=0.65+0.41=7.3-0.1=
5.3+0.3=6.1-1.7=0.8+0.39=5.9-0.9=
二、混合运算。
0.74+0.42+9.69.5-0.26-1.7487.8+26+56.4
63.46+15.45+89.8474.01+32.44+40.834.23+1-2.97
40-(8.67-0.2)82.2+(19.8+8.7)4.77-3.16+1.11
一、口算。
8.1-0.4=8.4+2.8=0.89+0.37=4.5+0.6=
7.9-0.4=7+3.1=0.7-0.49=6.2+0.9=
6.4-0.2=7.4-3.2=0.63-0.09=5.9+0.1=
2.6+0.3=6.3-0.4=0.71-0.48=3.4+0.4=
5.8+0.1=8.8-3.5=0.75-0.03=7.9+0.4=
7.9+0.6=7.7-3.7=0.87+0.34=4.3-0.2=
3.2+0.5=7-1.5=0.82-0.42=6.1+0.5=
2.2-0.6=9-4.3=0.66-0.33=2.5+0.1=
二、混合运算。
0.74+0.15+1.29.7-0.64-3.3658.5+43-11
66.31-40.37+27.0987.12-44.82+12.895.75+2.79-1.78
60-(6.15-0.61)61.8+(17.7+8.7)5.96+2.75-2.95
一、口算。
6.6+0.8=7.2+1.7=0.69+0.19=2.3-0.8=
1.6-0.8=6.9-1=0.74-0.32=5.5-0.5=
6.8-0.7=8.3+0.3=0.84+0.12=2.9-0.9=
6.8-0.8=8.7+0.2=0.87-0.4=7.7+0.2=
4.2+0.1=7.7+0.4=0.89+0.42=7.1+0.6=
4.4+0.3=8.5+1=0.62+0.16=4+0.1=
1.7+0.6=8.6-4.1=0.78+0.48=8.4+0.9=
4.5+0.3=7.6+3.3=0.74-0.16=8.1+0.2=
二、混合运算。
0.72+0.49+2.89-0.67-0.3346.8-21.4-15.8
78.59-44.65+19.7383.42+44.19+64.326.83+3.44+1.75
20-(8.17-0.36)73.7-(23.8+6.4)5.97-1.18+4.07
一、口算。
1.7+0.8=8.3-4.9=0.74+0.36=8.8-0.2=
6.8+0.5=8.1+4.2=0.78+0.08=7.6+0.5=
2.4-0.4=7.9+0.5=
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