人教版四年级数学下册小数加减法混合运算专项练习题35.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35.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35
一、口算。
1.2+0.4=8.6-0.8=0.77-0.01=7.6+0.4=
4.2+0.9=8.7-4.6=0.64+0.38=5.5-0.5=
5.2-0.6=6.4-1.7=0.72+0.44=3.1+0.9=
1.7-0.3=7.9+0.8=0.78-0.17=8.3+0.3=
7.2+0.6=7.5-3.3=0.85-0.04=8+0.3=
5.5+0.7=7.4-0.3=0.66-0.32=3.4-0.1=
6.4+0.1=8.9-2=0.81+0.49=8+0.3=
8.5+0.6=7.3-0.7=0.62+0.39=2.9-0.9=
二、混合运算。
0.68+0.01+4.79.1-0.45-0.5538.2+11.5+12.8
76.49+16.54+62.6176.31-48.11+96.963.94+1.66+1.53
40-(5.38+0.36)96.3+(15.7+1.2)4.1-2.54+1.22
一、口算。
1.4+0.1=6.1-2.4=0.66-0.12=7-0.7=
4.2+0.2=8-3.9=0.81+0.09=8.5-0.5=
7.5-0.8=6.4+1.5=0.89-0.02=6.5+0.5=
9-0.1=6.9+1.9=0.6-0.35=4.4-0.6=
3.6+0.5=8.2-2.5=0.81-0.41=9-0.4=
7.9+0.3=7.1-3.4=0.75-0.11=8.3-0.4=
7-0.8=7.2-4.5=0.63+0.12=8.1-0.8=
6.9-0.7=8.7-3.3=0.82+0.38=6.2+0.2=
二、混合运算。
0.8-0.43+8.29.1-0.53-0.4797.2+77.7+12.1
61.94+35.84+19.3563.25+40.84+65.819.84-6.77-1.73
40-(9.11+0.79)95.9-(20+6.9)9.5+2.21+1.61
一、口算。
6.5-0.5=6.7-2.2=0.64+0.3=2.3+0.7=
3.2-0.8=7.9-2.8=0.77-0.42=5.7-0.6=
7.6-0.3=6.3-3.8=0.74-0.47=8.9+0.7=
5+0.6=7.5+3.8=0.84-0.21=8.4-0.3=
8.6-0.6=8.4-4.1=0.87+0.26=3.6+0.2=
5.6-0.2=8.9-4.3=0.68+0.36=4.7+0.8=
3.1+0.8=7.5+1.4=0.61+0.47=3.5+0.1=
8.6+0.9=8.8+0.2=0.67-0.38=1.3-0.5=
二、混合运算。
0.78+0.35+0.37-0.62-1.3891.1+68.3+17.2
66.95-33.38+44.0889.35+32.21+87.338.37+5.91+1.55
80-(1.61+0.79)74.1-(27.7-9.3)7.61+2.37+5.04
一、口算。
6.1+0.5=6.4-2.9=0.69-0.45=8.8-0.8=
1.7-0.5=8.9-2=0.88+0.44=5+0.1=
1.4-0.1=9-0.7=0.64+0.48=2.4+0.7=
5.9+0.8=7.9+4.4=0.85+0.37=7.2+0.2=
4.6-0.6=8.4-4=0.84-0.49=1+0.7=
8.6-0.6=7+3=0.64-0.03=3.8-0.8=
5.3-0.3=8.9-3.9=0.64+0.41=4.1-0.1=
5.5+0.5=6.9+2.6=0.63-0.42=1.1-0.3=
二、混合运算。
0.81-0.24+27.7-0.84-4.1647.8-10.7-27.1
67.01+16.09+39.1862.2+11.48+54.399.71+6.74+2.94
60-(2.83+0.28)60.6+(18.6-1.3)4.45+2.63+1.48
一、口算。
1.9+0.3=7+2.8=0.73+0.4=3.2-0.2=
6-0.4=8.4-4.4=0.82+0.08=2.7-0.5=
8.5-0.5=6.1+4.9=0.9-0.1=2-0.4=
3.3-0.8=8.7+3.8=0.89-0.27=6.6-0.5=
6.1-0.1=7.9-1.1=0.8+0.45=5.6-0.8=
2.9-0.2=6-1.5=0.72+0.04=5.3+0.9=
3.1-0.3=6.3-0.6=0.61-0.09=5.7+0.3=
3+0.4=6.8+3.4=0.76-0.43=2+0.9=
二、混合运算。
0.79-0.48+2.97.2-0.89-0.1151.3-10.1-26.7
77.17+20.49+67.4574.71-17.38+61.758.15+3.02+3.04
40-(7.41-0.87)70.1-(15.5-5.8)9.87-1.29+8.33
一、口算。
2.5-0.7=7.6+4.9=0.73+0.39=5.9-0.9=
7.3+0.8=8.1-2.8=0.87+0.13=6.2+0.4=
5.3+0.7=8.1-1.2=0.77-0.15=8.1-0.8=
5+0.6=7.3-0.2=0.74-0.1=8.4+0.3=
8.5-0.6=8.2+2.3=0.72-0.34=3.6+0.3=
1.2+0.7=8.8+0.7=0.62+0.46=4.4-0.6=
5+0.2=8.3+3.1=0.85+0.4=1.6-0.2=
3.4+0.6=7.9-1.2=0.76-0.33=4.3+0.3=
二、混合运算。
0.61-0.05+1.27.6-0.75-3.2598.8-10-30.7
69.62+25.11+34.485.73-28.12+42.165.93+3.43+1.95
90-(2.23+0.19)64.4+(15.3-4.5)4.43+2.76-1.4
一、口算。
5.7+0.6=8.2-0.5=0.7+0.18=5.9-0.7=
7.8-0.2=7.6+4.1=0.75-0.26=1.4+0.8=
2.6-0.5=7.7+0.5=0.81-0.26=5.4+0.2=
7.5-0.5=6+4.9=0.72+0.45=4.5+0.7=
3.2-0.1=6.8+1.3=0.71-0.09=6.5-0.8=
8.1-0.7=8.9-0.4=0.65+0.01=1+0.2=
1.9+0.1=7.1-0.1=0.88-0.12=3.5+0.9=
1.2+0.1=7.2+2.1=0.72-0.34=4.9-0.4=
二、混合运算。
0.83+0.04+6.98.9-0.59-3.4184.3-33+40.4
89.48+48.54+88.2376.01+12.78+91.795.98+3.55+1.24
40-(3.93+0.4)70+(28.6-4.5)7.15-3.76+2.29
一、口算。
6.1+0.5=8.4-1.9=0.62-0.13=5.1-0.6=
8.2+0.6=7.8+3.7=0.82-0.43=7.4-0.2=
7.5+0.8=7.3+2.3=0.61+0.32=6.5-0.3=
6.8-0.8=7.2+4.8=0.84-0.04=5.3+0.1=
6.7-0.6=7.8-0.2=0.76+0.33=7+0.7=
6.9+0.8=8.2-2.9=0.75+0.04=4.1-0.9=
4.3+0.5=6.3-4.9=0.8-0.05=6.9-0.8=
3+0.7=9-2.7=0.64+0.38=8.1-0.7=
二、混合运算。
0.61+0.39+1.76-0.25-4.7537-21.7-12.3
84.18+23.69+73.6485.91-26.38+45.739.36+5.42+2.67
40-(3.21-0.36)75.4-(16.9+6.2)8.42-6.32+1.25
一、口算。
6.7+0.8=8.4-1.6=0.72+0.2=5.7+0.6=
4.3+0.6=6.3+4.1=0.78-0.4=4.5+0.7=
6.8-0.3=8.5+2.7=0.72-0.25=5.7+0.2=
5.3-0.6=8.3-4.5=0.82-0.34=6.4+0.5=
3.6+0.7=7.5-3.4=0.72+0.04=8.2+0.7=
8.5-0.6=6.7+1.8=0.83+0.1=6.5-0.8=
8.3-0.3=9+4.5=0.69+0.41=3.4-0.9=
1+0.5=7.1+2.2=0.78+0.39=3.4+0.6=
二、混合运算。
0.86-0.41+5.39.4-0.66-4.3469.3+31.6-36.3
75.95-18.18+55.9475.49-47.92+39.063.88-1.91+1.18
60-(3.5+0.7)82.6+(15+1)6.65-3.56+1.03
一、口算。
5.2+0.5=8.6+3.4=0.61-0.36=2.7-0.4=
4.2+0.2=7.7-1=0.66-0.19=1.5-0.4=
1.4-0.6=6.7+4.9=0.64+0.35=4+0.3=
5.9-0.3=9+1=0.77+0.21=7.9+0.7=
5.6+0.4=7.7+3.6=0.67+0.33=7.4-0.3=
6+0.2=6.5+4.1=0.89+0.36=1.8-0.3=
5.7-0.4=6.3+4.3=0.67-0.15=1.8+0.5=
5.8+0.7=7.1+0.9=0.71+0.43=3.5-0.8=
二、混合运算。
0.9+0.28+0.96.3-0.33-1.6793.9-16.4-60.1
81.81+22.4+64.5371.52+40.6+42.39.51+4.74+4.64
50-(4.56-0.56)69.1-(18.6+3.8)9.05+2.33+1.64
一、口算。
6.6+0.9=7.2+4.3=0.9-0.06=6.2+0.4=
5.4-0.3=8.5+2.3=0.65-0.27=3.6-0.8=
4.1-0.2=9-0.8=0.76+0.15=6.9-0.5=
1.4-0.7=8.8+4.4=0.77-0.18=4.8-0.2=
2.3+0.6=6.1+4=0.84-0.49=5.1-0.8=
8.8-0.3=7.6-3.8=0.73-0.02=6.5+0.3=
2.4-0.8=8-2.3=0.61+0.48=6.7-0.3=
5.1-0.1=8.9-4.8=0.83+0.2=3.5+0.2=
二、混合运算。
0.83-0.45+4.56.3-0.24-2.7684.9-39.4-40.4
85.11+42.81+11.9887.59+28.74+58.286.03-1.94-3.34
40-(7.97-0.85)66.9+(11.8+2)8-4.98+1.82
一、口算。
7.3-0.1=6.6+1.8=0.61-0.4=3.1+0.6=
2.8-0.6=6.1+2=0.78-0.24=6.4+0.1=
6.2+0.6=7.8-0.6=0.7-0.21=5.2+0.4=
2.3-0.9=7.1-0.3=0.87+0.15=1.7+0.7=
2.3+0.6=6.6+3.7=0.64+0.02=3.9+0.9=
9-0.3=7.2+3.2=0.63+0.34=6.2-0.3=
8.6-0.7=8.3-0.7=0.63+0.43=7.2-0.1=
3.8+0.1=6.9-2.5=0.76-0.44=4.9-0.8=
二、混合运算。
0.62+0.49+8.16.4-0.16-2.8487.8+71.8+13.9
68.37-29.26+41.1673.23-24.43+34.416.94-3-3.63
30-(1.97-0.3)61.7-(13.7+3.4)8.68+3.27+1.43
一、口算。
8+0.9=8.3+1.2=0.84-0.21=2.4-0.8=
3+0.7=6.2+0.2=0.77-0.15=6.1-0.9=
2.4+0.4=6.1-3.4=0.89+0.47=3+0.8=
7.2+0.4=6.6+4.6=0.61-0.35=8.8+0.4=
8.8+0.6=7.6-2.9=0.83-0.46=8.7+0.1=
7.3+0.6=7.2-1.6=0.69-0.13=6.9+0.8=
1.2+0.5=6.5-2.1=0.73+0.07=8.7-0.4=
1.9+0.8=7.5-2.1=0.6+0.42=2-0.1=
二、混合运算。
0.86+0.05+6.45.1-0.53-2.4763.7-36.4+24.7
66.7-11.01+31.1565.38-43.22+70.926.05-1.12-2.32
80-(8.2+0.92)71.8+(20.9-4.5)8.8-5.1+3.59
一、口算。
8.5+0.1=8+0.3=0.79-0.29=3.6-0.9=
6.4+0.4=8.3-4.4=0.68+0.3=5.8-0.9=
1.5+0.8=8.2+4.4=0.81-0.27=2.8+0.9=
8.8+0.6=6.3+0.6=0.8-0.42=4-0.8=
4.8-0.6=6.2-1.9=0.76+0.36=7.5+0.8=
2.2+0.7=8.7-3.5=0.64-0.36=2-0.3=
4.9-0.5=8.5+1.8=0.89-0.17=7.5-0.2=
3.2-0.3=6.7-3.7=0.85-0.14=6.6+0.6=
二、混合运算。
0.79-0.15+4.27.1-0.28-3.7242.4+15.4+17.8
72.55+48.9+53.3774.7-15.77+72.077.81-2.51-3.56
60-(9.49+0.27)85.6-(14-6.8)3.93-2.12+1.37
一、口算。
4.2-0.8=8.2-0.9=0.81+0.27=6.1-0.6=
6.5-0.2=7.2+2.7=0.75-0.2=8.2-0.1=
3.5+0.3=7.9-4.8=0.83-0.25=4+0.1=
3.6-0.1=6.1+1.7=0.7+0.41=4.4+0.3=
3.1+0.5=9-1.3=0.75-0.41=1.6-0.5=
3.3-0.8=8-2=0.81-0.46=5.6+0.4=
3-0.4=7.6+3.5=0.62-0.1=5.9+0.3=
4.3+0.4=7.6-3.4=0.7-0.14=8.3+0.5=
二、混合运算。
0.73+0.22+6.96.7-0.23-3.7754.7+36.6-11.1
65.69+34.2+84.0686.39+13.18+92.226.38+2.7-3.02
90-(8.6+0.32)70.8+(20.9-5.6)3.63-1.76-1.16
一、口算。
1.5+0.2=7.8-4.6=0.77-0.16=2.5+0.4=
2+0.1=6.7-4.8=0.81-0.31=4.9+0.9=
3.3+0.3=6.3-2.6=0.64+0.14=1.4-0.7=
8.8+0.8=7.2-4.9=0.74-0.4=4.9-0.3=
8.9-0.2=8.3+3.1=0.78+0.23=7.2-0.5=
3.2-0.6=8.9-1.6=0.67+0.12=4.4-0.6=
4.3+0.3=6.5-1=0.73+0.03=2.8-0.7=
7.9+0.6=7-2=0.68+0.49=7.9+0.8=
二、混合运算。
0.71-0.07+2.49-0.51-1.4964.4+28.4-23.9
89.84-31.56+90.1577.38-23.17+55.915.37+2.01-2.25
30-(2.4+0.49)77.1+(14.1-9.6)6.89+4.33-2.1
一、口算。
4.4+0.9=7.7-4.7=0.75-0.09=1.8-0.9=
5.2-0.1=6.1+3.5=0.64+0.48=4.4+0.2=
4.2-0.1=8+0.2=0.83+0.3=1.1+0.9=
6.3+0.3=6.7+1.8=0.78+0.2=7.4-0.4=
8.7-0.1=7.4-2.9=0.75-0.35=7.9+0.4=
6.3-0.2=7+3.5=0.8-0.43=8.9+0.4=
3.9-0.4=8.5+4.3=0.84+0.4=7.4+0.8=
5.6+0.7=6.2+3.7=0.68+0.03=7.2+0.9=
二、混合运算。
0.65-0.17+0.97.1-0.68-1.3294.8-52.3-20.8
89.01-10.25+94.5261.16+47.67+65.555.73+3.91+1.49
80-(4.85+0.18)81.1+(11.9-9)7.28+3.79+1.53
一、口算。
4.8+0.5=6.3+2.7=0.77-0.32=8.1+0.3=
1.4+0.7=6.8+2=0.87-0.43=7.3-0.2=
3-0.6=8.7-4.9=0.63-0.
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