四年级数学下册小数加减法混合运算专项练习95.docx
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四年级数学下册小数加减法混合运算专项练习95.docx
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四年级数学下册小数加减法混合运算专项练习95
一、口算。
1.6-0.5=8.5+2=0.66+0.01=4-0.5=
2.6+0.1=8.6-1=0.81+0.07=7.3+0.9=
4.7-0.7=7.2+2.7=0.74-0.39=2.3-0.9=
2.2-0.2=7.6-1.9=0.88-0.26=2.5-0.7=
6.7-0.3=6.1+4=0.72-0.46=6.1+0.9=
4.9+0.8=7.4+4.9=0.85+0.19=7+0.1=
6.5+0.5=6.6+0.7=0.82-0.17=7.8-0.1=
2.1-0.3=8.3-1=0.68+0.04=5.2+0.8=
二、混合运算。
0.9-0.23+3.16.6-0.21-4.7993.2+58.6+21.6
81.73+24.05+45.2489.81+17.96+77.244.87-1.93+2.88
60-(9.44+0.44)62-(27.2+6.5)6.23+3.82-1.55
一、口算。
3.4-0.4=7.4-4=0.68+0.3=6.3+0.9=
8.3-0.5=8.2+4.3=0.71-0.31=3.7-0.5=
6.3+0.7=8.6+0.8=0.79-0.49=6.9+0.2=
6.2-0.5=8.5+2.9=0.9+0.18=2.8+0.2=
5-0.7=8.6+4.1=0.6-0.42=2.4-0.6=
7.1+0.5=8.5+2=0.65-0.37=6-0.4=
8.7-0.2=7.7+3=0.77-0.06=7.4-0.5=
6.1-0.1=7.9-3.4=0.85+0.3=4.4+0.5=
二、混合运算。
0.66-0.04+1.69.6-0.1-1.993.8+71+14.9
67.79-12.09+11.9662.52-29.09+65.779.67+3.58-3.27
30-(7.93-0.87)91.9+(14.9+1.1)8.77+5.38+1.35
一、口算。
6.8-0.8=7.7+4.1=0.69-0.48=6.7+0.8=
7-0.2=8.7+1.9=0.66-0.02=6.9-0.1=
2.4+0.7=6.3+0.6=0.83+0.38=1.6-0.5=
3.1+0.4=8.4-2.4=0.75+0.45=8.9+0.5=
4.9+0.6=7.2+3.6=0.69+0.48=3.7+0.3=
5.9+0.1=6.3+4.4=0.86+0.07=4+0.6=
3.9+0.2=8-0.1=0.79-0.2=4.5-0.8=
8.8-0.2=7.3+1.3=0.66+0.25=5.2+0.1=
二、混合运算。
0.61-0.13+2.87.4-0.51-4.4977.6-51.5+12.1
81.26-38.88+62.5886.97-24.7+70.476.35+1.75+3.22
20-(3.46+0.22)64.1-(17.9-9.3)9.65-6.7-1.33
一、口算。
5.1-0.9=6-4.4=0.73+0.17=2.8-0.8=
5.2+0.8=8.1+2.9=0.69-0.07=9+0.9=
6+0.5=6.7+1.5=0.73-0.05=1.9-0.6=
4.2-0.8=7+0.6=0.82-0.12=4.9-0.5=
2+0.4=7.6+0.8=0.88-0.06=7.1+0.9=
1-0.9=6.1+4.6=0.61-0.36=1.9+0.9=
4.8+0.4=8.3+1.8=0.6+0.45=6.9+0.9=
7.7+0.3=6.8-4.1=0.87+0.09=2+0.9=
二、混合运算。
0.7+0.4+5.58.6-0.15-4.8543+22-10.3
76.84+32.16+98.5463.42-46.14+64.946.91+2.8+3.27
60-(2.27-0.94)89.6+(15.6+9.4)7.03-1.44+1.09
一、口算。
2+0.9=7.2-4.9=0.9-0.31=8.8+0.5=
1.4+0.2=7.3+0.3=0.73-0.32=6.5+0.7=
1.6+0.2=8.3+1.9=0.64-0.06=1.6+0.5=
8.8-0.6=8+3.5=0.62-0.22=6.7-0.6=
6.7+0.7=6.3+0.5=0.6+0.27=8+0.3=
8+0.6=6.5-3.5=0.87+0.32=1.3+0.8=
4.1+0.8=8.8-1=0.87-0.22=8+0.3=
3.1-0.7=8.9-2.4=0.7+0.01=8.9-0.2=
二、混合运算。
0.88+0.32+6.26.9-0.71-1.2996.6-35.6+21
82.8-28.05+47.8468.72-37.03+52.258.66+1.82-3.41
90-(9.65-0.33)78.1+(18.6+2.1)4.56-1.07-2.47
一、口算。
2-0.1=8.9+0.1=0.84-0.3=3.8+0.5=
3.3+0.7=8.2-3.5=0.82+0.18=2.9+0.1=
1.4-0.6=7-3.3=0.77+0.38=8.1+0.2=
6.7-0.2=6+2.4=0.76+0.16=3.2+0.3=
4.5+0.3=8.3+3.3=0.65+0.14=6.7+0.9=
5.9+0.3=8.3+2.2=0.64+0.43=1.8+0.9=
2.2-0.7=6.1-2=0.72-0.15=2.5-0.8=
3.9+0.9=7.3-2.1=0.82-0.1=2.5-0.3=
二、混合运算。
0.64-0.02+4.27.1-0.36-2.6485.6+48.9-10.3
68.64-46.78+92.1988.58-22.73+53.288.89+7.34+1.55
60-(4.17+0.56)91.2-(29.2+5.9)5.49+1.82-1.06
一、口算。
5.2-0.6=6.7-2.8=0.64-0.25=6-0.2=
6.8-0.4=6.4-0.4=0.65+0.27=3+0.4=
1.7+0.5=6.2+3.5=0.66+0.2=9+0.2=
4.2+0.5=8.7+1.6=0.75+0.43=1.2-0.8=
2.7+0.7=6.3-4.4=0.69-0.02=5.7-0.8=
4.7+0.4=6-2.3=0.69-0.21=6-0.9=
2.5-0.1=8.8+3.6=0.9+0.38=2.8+0.1=
3-0.7=7.3+4.7=0.7+0.43=8.1-0.3=
二、混合运算。
0.61-0.34+2.15-0.7-3.394.1+69.4-16.7
68.05-23.63+63.3475.62+31.36+49.026.92-4.81-1.66
50-(1.69+0.65)78-(19.4-8.3)9.04-6.43+1.21
一、口算。
7.1-0.9=8-3.1=0.62+0.17=2.6+0.5=
1.6+0.5=7.2-0.8=0.81-0.36=6.2+0.5=
7.7-0.6=7-2.8=0.82+0.32=4.1-0.7=
6.1-0.1=7+4.8=0.88+0.39=4.9+0.2=
7.5-0.4=8.8-3.1=0.79-0.18=7-0.1=
4.9+0.3=6.5-0.4=0.71-0.33=8.4+0.6=
5.4-0.9=6.6-1.9=0.75+0.34=4.9+0.8=
9+0.1=8.8+2.1=0.9-0.15=2.8+0.2=
二、混合运算。
0.64+0.31+9.49.4-0.14-1.8674.4-24.1-41.2
62.12+33.62+78.0668.43+12.33+62.58.02-1.44+4.17
50-(3.58-0.71)78+(16+2.9)7.24+3.31-2.31
一、口算。
8.9+0.6=6.6+2.4=0.79+0.16=5.1+0.5=
8.1+0.4=7.7-4.6=0.72+0.3=6.9+0.3=
3.9+0.8=8.1-4=0.8+0.38=1.8+0.2=
2.8+0.1=7.8-0.1=0.78+0.41=3.3+0.5=
3.5-0.3=8.8-1.7=0.81-0.48=6.8-0.7=
2.5-0.4=7.1-4.1=0.71-0.46=5.9+0.8=
8.2-0.3=7.2-4.2=0.82+0.13=1.1+0.9=
4.1+0.7=6.6-0.2=0.67-0.47=1.4-0.4=
二、混合运算。
0.83+0.03+8.67.2-0.74-4.2647.2+27.5-13.6
83.5+39.9+27.1986.07-11.92+25.68.47+1.43+3.66
20-(2.22+0.84)89.3+(16.2-6.3)4.91+1.65-2.05
一、口算。
6.2+0.7=8.6+2=0.69-0.14=2.4-0.7=
2-0.1=8-0.1=0.72+0.36=4.4-0.5=
5.1-0.7=6+2.4=0.7+0.4=3.9+0.4=
2.8-0.7=8.9+1=0.61-0.39=2.9-0.9=
6.5-0.1=8.5-4=0.82+0.46=6.8-0.3=
2.6+0.5=8.1+0.2=0.67+0.35=6.4+0.2=
1.8-0.3=7+2.4=0.81+0.36=4.8+0.3=
2.7-0.5=7.1-0.1=0.85-0.23=6.2+0.6=
二、混合运算。
0.66+0.28+9.76.3-0.57-3.4384.6+20+23.6
66.26-14.64+24.7871.6-10.05+94.584.21-1.36+1.7
70-(1.26+0.33)92.5+(23.4-2.9)9.77+1.02-7.57
一、口算。
8.9-0.7=8.6-1=0.84-0.11=8+0.1=
4.2+0.1=8.9-1.6=0.88-0.11=7.7+0.3=
9-0.5=7.7+1=0.73+0.22=3.1-0.7=
7.2+0.5=6.7-4.2=0.62-0.37=3.5+0.3=
1.5+0.2=7.6-3.3=0.9+0.27=4.7-0.9=
4-0.2=6+1.7=0.81-0.28=2.3+0.5=
6.2-0.4=6.8-2.1=0.71+0.28=6.7-0.7=
5.4-0.2=8.4+4.6=0.63+0.06=4.7-0.4=
二、混合运算。
0.84-0.13+57.1-0.6-3.494.1+24.6+21.9
63.06+40.94+68.9669.08+10.35+49.357.36+1.37-5.12
30-(8.7-0.74)74.7-(25.5-4.5)8.14+2.69-2.38
一、口算。
4.9-0.5=9+2.2=0.64+0.47=7.3+0.1=
1-0.7=7.8+3.6=0.77+0.27=2.5+0.6=
2.3-0.4=7.2+0.9=0.85+0.44=5.7+0.5=
1.2-0.4=7.5-1.4=0.83+0.11=6.6-0.6=
5.1-0.8=7.3+3.5=0.7+0.28=3.9+0.6=
3.6-0.9=8.3-1.5=0.8-0.35=8.2-0.4=
2.7+0.7=8.1-4.4=0.72-0.46=5.6-0.6=
5.2+0.3=8.2-2=0.64+0.17=8+0.9=
二、混合运算。
0.81-0.48+9.85.2-0.56-3.4460.8+10.5+20.4
71.04-37.38+44.8661.08+13.43+13.738.52+6.29+2.1
40-(1.75-0.35)96.9+(19-4.5)5.78+1.28-3.34
一、口算。
6.6-0.3=8.3-3.7=0.9-0.22=5.9+0.4=
4.6-0.1=6-4.4=0.78+0.43=8.7-0.3=
8.9+0.3=8.7+2=0.63-0.11=2.5-0.7=
5+0.3=6.3+4.3=0.82-0.44=3.8+0.7=
7.8+0.4=6.6+3.9=0.8-0.38=4.6-0.8=
2.4+0.6=6.1+2.4=0.67-0.08=7.4+0.7=
8.9+0.7=6.5-1=0.84-0.25=6.5-0.9=
2.6-0.8=7.4-1.9=0.87-0.17=6.3-0.8=
二、混合运算。
0.75+0.17+6.37.8-0.43-2.5736.2+19+15.6
81.29-37.31+49.6884.35-30.78+24.169.21-6.73+1.7
40-(6.77-0.98)60-(12.4-4.4)5.16-2.48+1.96
一、口算。
5.1-0.3=8.4+4=0.63-0.36=7.8+0.8=
7.2-0.3=6.5+4.9=0.83-0.28=6.9-0.6=
5.4-0.2=6.6+4.1=0.73-0.4=5-0.1=
9-0.3=7.8+3.1=0.68-0.3=3.3-0.6=
7.2+0.2=8.9+3.8=0.64+0.38=8.5-0.4=
8.1+0.7=9-0.7=0.77+0.2=1.3+0.4=
8.9+0.3=8.4-3.6=0.87+0.33=7.3+0.7=
7.6-0.4=8.5-1.7=0.87+0.36=3.6+0.3=
二、混合运算。
0.77-0.3+9.27.4-0.82-2.1835.7+15.9-11
84.7-42.47+34.3383.28+46.52+24.355.32+3.18-1.38
70-(9.75+0.36)85.7-(11.3+2)3.59+1.03-1.33
一、口算。
8.3+0.1=6.9+3.4=0.79+0.46=1.2+0.9=
3.5+0.2=7.9-2.7=0.69-0.15=1.2-0.5=
1.2+0.5=6.1-4.7=0.81+0.39=2.4+0.3=
4.6+0.8=6.4+4.2=0.7+0.46=1.5+0.9=
1.4+0.5=8.9+4.7=0.79-0.09=3.1-0.6=
4.5+0.4=6.9+1.4=0.67+0.43=6.5+0.5=
5.8-0.1=6.6+0.8=0.77+0.32=2.2+0.6=
1.7+0.7=8.7+4.2=0.71-0.06=5.6+0.4=
二、混合运算。
0.6-0.39+9.39.5-0.25-2.7599.9+46.5+48.8
84.68-31.25+28.2479.27+30.17+11.845.29+2.48-2.66
40-(8.64+0.69)93.6-(16.2-8.7)4.2+1.74-1.53
一、口算。
4.7+0.5=6.5+0.8=0.85+0.49=5.2-0.4=
5.1+0.2=7.1-2.8=0.62+0.23=7.4-0.7=
5.7+0.5=8.6-3.9=0.81-0.01=4.1-0.4=
7.8-0.2=9+2=0.87+0.04=2.9+0.8=
1.2+0.1=7.4-3=0.87+0.38=8.3-0.9=
6.2+0.9=8.3+0.4=0.63-0.42=7.4-0.8=
3.4-0.3=8.9+4.9=0.88+0.44=3.2-0.7=
1.8+0.7=8+1=0.69-0.15=1.4+0.1=
二、混合运算。
0.72-0.13+5.45-0.46-4.5486.5+61.1+24.8
71.9-39.33+31.6186.65-14.07+38.198.62+6.22+2.23
90-(1.86+0.36)99.3+(25.3+4.9)5.88+1.88+3.2
一、口算。
5.3+0.2=6.5-3.5=0.86+0.49=3.4+0.9=
4-0.4=6.2-2.1=0.66+0.03=2.9+0.2=
3.7-0.1=7.9-1.5=0.84-0.46=1.9-0.7=
1.4-0.6=7.2-3.8=0.87+0.34=5.2+0.7=
7.3-0.4=7.3+0.9=0.85-0.08=4.1+0.8=
9-0.3=6.3+4.6=0.88+0.32=6.8+0.3=
5.2-0.2=8-2.7=0.66-0.22=5.2+0.1=
7.6-0.6=8.8-3.3=0.9+0.42=2.9-0.7=
二、混合运算。
0.8+0.41+3.45.5-0.51-2.4980.4-15-60.9
62.63+35.66+49.0177.69+20.33+19.24.37+1.45-1.5
60-(1.91+0.26)74.2+(28.4+3)8.41+2.52-1.2
一、口算。
4.1+0.8=6.8+4.1=0.83+0.4=6.8+0.1=
3.1+0.4=7.9+2=0.67+0.25=9+0.2=
1.6+0.6=6.9-4.7=0.87+0.18=1.8-0.7=
7.7+0.2=7.1+0.9=0.74+0.06=
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