人教版四年级数学下册小数加减法混合运算专项练习题33.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33
一、口算。
7.1+0.3=6.7+3.1=0.77+0.17=2.3-0.6=
3.3+0.3=7.3+4.8=0.8-0.42=5+0.8=
3.6+0.9=6+4.7=0.84-0.26=6.1+0.3=
1.9-0.1=6.9-0.1=0.72-0.14=1.9-0.9=
2.1-0.6=8.1-3.9=0.65+0.32=1.4+0.7=
3+0.5=7.7+0.1=0.88+0.39=7.6-0.6=
2.6-0.4=8-3.3=0.74+0.37=8+0.5=
6+0.1=7-4.2=0.9-0.29=2.7-0.5=
二、混合运算。
0.69-0.07+6.86.8-0.42-1.5885.4-10.3-11.4
66.08-25.42+67.6173.58+46.11+99.549.19+4.94-2.5
30-(3.88-0.5)97.8-(18.2-2.5)6.51+1.96+1.42
一、口算。
2.1+0.6=6.6+2.4=0.65-0.13=2.3-0.4=
3.8+0.2=6.8-2.6=0.69-0.01=4.8-0.2=
8+0.8=6.3+2.2=0.62+0.04=6.8-0.5=
2.6+0.9=7.6+3.7=0.62+0.43=2.6+0.5=
4.2+0.7=7.9-4.5=0.85+0.45=1.7-0.1=
5.6+0.2=9-2.7=0.86+0.09=5.1+0.2=
1+0.9=7.3-3.9=0.77+0.17=3.5+0.7=
7.1-0.7=7.2+1.4=0.84+0.11=2.4-0.7=
二、混合运算。
0.9-0.39+8.58.1-0.26-4.7436.8+19.9-11.2
77.72+22.74+39.5287.35+24.75+74.675.07-1.8-2.09
90-(1.95-0.74)62.7+(11-5.4)9.6-4.58-2.25
一、口算。
1.5+0.6=6.2+3.6=0.63+0.46=6.9+0.3=
7.7+0.1=8.3+0.8=0.65+0.43=3.5-0.4=
5.8-0.8=7.1-2.4=0.83+0.4=1.1+0.2=
1.8-0.3=8.2+1.2=0.71-0.01=1.5-0.1=
8.1+0.8=7.9+1.3=0.73+0.19=3.4+0.9=
3.3-0.5=6.4+4.3=0.67-0.49=5.3-0.5=
5.2+0.5=8.4+2.1=0.84-0.06=6.1+0.5=
7+0.8=6.3+4.8=0.62-0.26=1.1+0.7=
二、混合运算。
0.8-0.3+3.99.3-0.71-1.2966.7+27-32.3
67.5-16.93+36.5283.91+27.49+26.628.96-3.04-2.39
80-(1.4-0.46)83.6-(15.4+1.6)6.35+3.24+1.44
一、口算。
7.7-0.6=8+2.3=0.73+0.23=3.4+0.1=
1.6-0.2=7.6+3.6=0.75-0.18=8.5-0.3=
2.6+0.8=6-4=0.8+0.42=2-0.3=
5.2+0.7=6.9-3.5=0.61+0.44=3.7+0.3=
5.3+0.2=6-3.2=0.81+0.16=8.3-0.8=
8-0.9=7.2-2.4=0.6+0.34=3-0.6=
6.6+0.4=8-1.4=0.88-0.27=8.1+0.8=
1.4-0.7=7.8+4.7=0.85-0.25=5.6-0.2=
二、混合运算。
0.72+0.49+5.46.7-0.59-0.4163+36.5-16.8
61.03+33.37+34.1387.25-12.91+425.81+3.29+1.8
70-(8.49-0.1)81-(28.3-9.1)9.58+2.17-2.56
一、口算。
8.8-0.8=7.2-4.7=0.68+0.05=5+0.3=
5.7+0.9=6+1.7=0.79+0.06=2.2-0.5=
6.7-0.6=6.1+2.5=0.66-0.46=5.6-0.1=
3.4-0.7=9+0.3=0.65-0.28=5+0.1=
2-0.6=7.9-4.7=0.75+0.45=3.1-0.5=
7.5-0.9=7.8-1.3=0.74+0.4=1.6-0.8=
5.5-0.3=7.9-1.2=0.71-0.03=3.1+0.9=
3.9-0.8=7.3-1.8=0.89-0.04=5.2-0.7=
二、混合运算。
0.77-0.21+0.18.8-0.3-2.738.5-18.7+18.5
62.24+27.76+32.8676.27-23.31+73.957.52-1.08-5.65
70-(9.25+0.67)78.4+(28.9-8.7)7.49+2.17+4.43
一、口算。
2+0.5=6-4=0.63-0.28=5.6-0.3=
5-0.8=7.4-0.8=0.6+0.12=6.2+0.8=
1.2+0.7=6.3-1.5=0.84+0.27=6.6-0.4=
4.9-0.1=6.9-2.4=0.72+0.46=5.4+0.1=
4.8-0.1=8.9-2.3=0.63-0.14=1.3-0.3=
3-0.7=8+2.7=0.64+0.26=2.5+0.1=
3+0.3=7+1.9=0.72+0.16=4.4+0.6=
1.1-0.2=6.6+4.5=0.71-0.38=3.7+0.9=
二、混合运算。
0.87+0.37+0.97.1-0.33-3.6744.8+13.1+15.9
64.98-22.17+5362.76+48.69+55.377.71+6.02-1.21
50-(2.35+0.16)90.4+(15-3.9)8.3-3.52+1.77
一、口算。
5.2+0.5=8.9+4.1=0.82-0.43=4.7-0.4=
5.6-0.8=7.2+0.4=0.83+0.29=2.3-0.2=
8.5+0.3=6.6-1.7=0.88+0.36=8.6+0.8=
6.2+0.7=6.3-2.8=0.72+0.48=6.9+0.1=
3.2-0.9=8.9-0.4=0.74+0.38=9+0.8=
6.9-0.7=8.3+4.7=0.88-0.26=6.9+0.1=
7.6+0.5=6.7+0.3=0.63-0.31=5.8-0.2=
8.8+0.8=8.7-4.7=0.63+0.21=8.2+0.1=
二、混合运算。
0.79-0.39+3.36.3-0.21-3.7964.8+39.5+12.8
63.43+18.24+34.3167.75-37.37+92.998.51+2.56+4.34
90-(9.61-0.22)77.3-(25.9+8.2)7.67+1.07+4.62
一、口算。
2.2+0.7=7.1-3.5=0.75+0.18=5.7+0.4=
2.6+0.5=7.6+3.1=0.84-0.06=6.9-0.7=
6-0.3=6.3+0.7=0.77-0.47=3.2+0.3=
6.1-0.9=8.3-4.7=0.84-0.08=4-0.8=
3-0.3=7.7+1.1=0.65+0.16=5+0.1=
5.6-0.4=7.6-0.7=0.9-0.39=8.7-0.7=
4.9-0.9=8.8+4.5=0.88-0.44=4-0.7=
4-0.7=6.1-0.6=0.8+0.37=7.4+0.7=
二、混合运算。
0.69-0.4+3.45.7-0.61-1.3946.5+23.9+22.3
68.12+46.79+53.3379.92-48.02+32.128.48+4.55-1.13
80-(1.42+0.85)83.6-(19.9-6.7)4.83+2.9+1.26
一、口算。
4.3+0.6=7.5+3.4=0.65-0.45=5.5+0.1=
6.1+0.6=7.9+0.5=0.81+0.4=6.9-0.4=
2.3+0.3=7+4.3=0.65+0.32=4.1+0.6=
6.1-0.7=7.5-3.5=0.62-0.3=8.9-0.6=
4.5+0.7=8.8+1.2=0.72+0.14=3.6-0.5=
2.4-0.3=6.4+3.9=0.6-0.39=5.7+0.4=
6.9-0.5=7.9-1=0.62-0.21=7+0.9=
7+0.6=6.4+2.2=0.69-0.07=2.4+0.9=
二、混合运算。
0.88-0.25+19.6-0.42-3.5862.3-29.1-11.1
85.13-11+44.0274.4+29.04+94.683.9+1.69-1.52
40-(9.15+0.91)91.2-(28.1+1.1)8.36-3.19-4.01
一、口算。
1.2-0.5=7.5-3.2=0.69+0.25=7.9-0.1=
6.5-0.9=8.2+1.6=0.64+0.42=1.9-0.6=
2.9+0.7=7.8+3.7=0.61+0.19=4.4-0.8=
3.9+0.1=8.9-4.7=0.84+0.4=2.3+0.1=
7.3+0.8=7.4+1.8=0.67-0.39=1.2+0.8=
5.4+0.1=8.2-0.2=0.83+0.49=7.3+0.1=
1.9-0.1=8.2-0.7=0.76-0.16=8.6-0.9=
3.6-0.6=6.3+1.1=0.73+0.2=2.3+0.4=
二、混合运算。
0.61+0.22+1.76.1-0.39-4.6139.8+16.8-22.4
69.24-25.85+68.2588.99+30.06+26.264.74+1.31-2.84
80-(2.12+0.86)75.7-(20.3+6.2)4.14+1.71+1.91
一、口算。
2.2+0.8=7.8+4.2=0.78-0.4=2.2-0.1=
7.1+0.1=8.6+3.4=0.75-0.1=4-0.1=
7.4-0.6=6.2+4.5=0.68+0.15=2.5-0.1=
4.2+0.3=8.2-0.5=0.74+0.27=8-0.8=
8.3+0.8=8.5+3.9=0.86+0.11=4+0.6=
3.1-0.2=6.1+3.1=0.64+0.04=5.4-0.2=
6.1+0.5=7.4-2.6=0.6-0.4=5.5+0.5=
1.4+0.6=7-2.9=0.77+0.09=9-0.1=
二、混合运算。
0.84-0.01+2.87.8-0.22-0.7872.5+23+33.8
62.83-12.21+48.1172.07-28.97+90.027.72+1.43-4.11
70-(5.46-0.1)87-(14.6-9)5.58+3.93-1.44
一、口算。
7.1-0.2=8.9-3.9=0.78+0.48=6.4-0.6=
7.1+0.8=8.1+4.6=0.84+0.02=6.3-0.3=
5.9+0.3=6.6-0.2=0.65-0.09=5.6-0.4=
8.5-0.7=8.9+1.3=0.67+0.32=2.8-0.6=
1.2+0.5=6.7-0.9=0.63+0.21=5.4+0.2=
1.6+0.3=6.1+4.6=0.67+0.43=8.8-0.6=
5.9+0.5=7.8-0.8=0.78+0.28=5.8+0.5=
2.3-0.9=6.7-1.6=0.88-0.29=8.4+0.7=
二、混合运算。
0.87+0.4+7.89.8-0.79-4.2151.8+23-24.8
87.54-14.22+87.1875.51+26.06+70.396.75+5.21+1.34
60-(5.8-0.73)98.6-(23.5+1.5)7.83-2.25+4.34
一、口算。
7.1+0.6=7.2-3.9=0.67+0.06=6.6-0.1=
7.5+0.5=7+2.2=0.6-0.35=4.6-0.7=
7.2+0.3=7-2=0.76-0.29=3.1-0.2=
1.2+0.9=7.4+4.6=0.74+0.48=6.7+0.3=
4.7-0.4=7.5+2.8=0.84+0.41=8.4-0.4=
5.9-0.6=7-1.9=0.87-0.15=7.5-0.3=
3.3-0.8=8.4-3=0.65+0.16=7.6+0.7=
3.2-0.9=7.4-3.3=0.64+0.26=5.6+0.8=
二、混合运算。
0.83+0.46+2.16.3-0.62-1.3876.4-17.1-55
77.15-27.67+71.5961.97+29.45+74.637.21+4.76+1.79
50-(3.89+0.89)77.4+(22.4+1.1)4.92+1.31+1.76
一、口算。
3-0.5=6.7-2.1=0.69+0.34=7+0.9=
4.6-0.1=8.8-0.8=0.89-0.27=2.2+0.6=
6.7+0.9=9-3.6=0.89+0.1=3.7-0.8=
1.8-0.4=7.3-2.7=0.77-0.2=3.1+0.4=
6.4+0.4=7.2-4.4=0.74+0.29=6.8-0.1=
7.1+0.3=7.2+0.7=0.76-0.49=4+0.9=
3.5-0.1=6.1+2.9=0.81+0.47=2.2-0.7=
3.3+0.1=6.5+0.8=0.86-0.22=3.9-0.6=
二、混合运算。
0.69+0.39+8.46.7-0.12-2.8852.3-36.9-14.3
71.42-47.77+37.6569.11+48.41+59.499.71+4.64-2.4
60-(6.38-0.43)67.9+(18.9+3.6)3.94+2.23-1.16
一、口算。
8.4-0.1=9-0.3=0.6+0.32=1-0.1=
5.6-0.8=6.2-4.6=0.78+0.27=2.7+0.9=
6.4-0.6=6.1+1.4=0.83+0.1=4-0.4=
3.3-0.2=7.7+3.9=0.71-0.09=2.7+0.4=
8.8+0.6=8.2-3.2=0.75+0.4=1.6-0.6=
3.9+0.4=8.1+2.8=0.86+0.41=7.2-0.5=
6.8-0.7=6.8+0.2=0.82-0.4=4.5-0.8=
6+0.1=8.2+2.8=0.88+0.42=6.2+0.1=
二、混合运算。
0.73+0.48+9.35.3-0.43-2.5788.8-32.5+42
89.76-22.73+60.577.9-37.77+86.178.59-1.77-4.39
50-(5.72+0.89)89.2-(15.9-9.5)5.39-2.71+2.06
一、口算。
7.1+0.1=8.6-4.9=0.69-0.47=7.5+0.2=
2.6+0.7=7.6+2.6=0.64+0.05=3.3+0.2=
4.3-0.1=8.9-1.2=0.85-0.19=4.2-0.2=
5.5+0.8=7.2+1.2=0.66+0.14=2.1-0.8=
2-0.6=7.9-4.3=0.9-0.36=1.5+0.2=
3.3+0.5=7.9+0.7=0.9-0.14=5.9-0.8=
6.8-0.2=8.2+4.7=0.63-0.35=6.5+0.2=
7.7-0.3=8.2-4.7=0.88-0.37=5.1+0.8=
二、混合运算。
0.82+0.19+9.18.6-0.2-4.847-18.2-19
87.43-40.61+64.6864.13-39.46+29.147.73-4.78-2.63
30-(9.55+0.83)82.9-(19.2+2)9.16+7.36-1
一、口算。
8.5+0.2=6.2+3.4=0.6-0.34=1.9-0.4=
8.7+0.3=8+3.1=0.63+0.26=7.5-0.1=
8.9+0.4=6.2+3=0.66+0.46=8.6-0.7=
8.1-0.2=6.1+3.6=0.63-0.07=3.3-0.6=
2.1+0.3=6.5-2=0.66+0.47=8.7+0.3=
1.6-0.3=6.7-2.6=0.65-0.33=1.3+0.8=
8.9+0.4=6.6-0.9=0.73-0.16=7.1-0.4=
2.3+0.5=8.5-0.1=0.73-0.03=3.5-0.9=
二、混合运算。
0.88-0.35+1.65.4-0.69-1.3191.4+64-16.5
73.45+15.1+54.0969.83+17.06+28.138.25-4+2.47
70-(3.09+0.69)91.7+(16.5-7.4)8.02-1.19+5.25
一、口算。
4.4+0.9=6.9+2.7=0.69-0.15=8.5-0.5=
5.7+0.2=9-2.9=0.77+0.2=7.9+0.9=
1.2-0.4=8.6+3.4=0.72+0.06=3.3+0.3=
8.2-0.9=