五年级小数加减乘除混合运算计算题练习题集.docx
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五年级小数加减乘除混合运算计算题练习题集
小数混合运算专项训练
1、解方程。
(1)5x=450
(3)1.2X6+4xW2
2、用简便方法计算。
(1)0.25X3.2X12.5
(3)0.25X44
22.2X4+17.8X4
3、用脱式计算。
(1)2.6+1.4X1.545
一12.5
(3)2.6+2.4X(1.4-1.05
(0.25+1.25)
30.8一[1牛(9.85+1.07)]
(2)12(6-x)=42
(4)8.5x-x=22.5
(2)36X10.1
(4)
(2)(37-3.6一4.8)
)(4)15.6一16X
[60-(9.5+28.9)]一0.18
2.881-0.43-0.24X3.5
20X[(2.44-1.8)-0.4+0.15]
777X9+1111X3
0.8X[15.5-(3.21+5.79)]
(31.8+3.2X4)-5
31.5X4一(6+3)
0.64X25X7.8+2.2
2一2.5+2.5—2
5180-
36.25—4.25X9.9705X6
24—2.4-2.5X0.8
(4121+2389)—7
671X15-974469X12+1492
18.1X0.92+3.93
0.78+5.436+1
0.4X0.7X0.25
4.8X5-4+1-4
9.9x5—6+5—6
10.3-4x8*91-3
14.31x5_f6-5—6
16.5*9x18-14x2*7
20.3x2一9+1一3
35.95*(54-45)
36.178-145-5X6+42
7.2*081.2X5
2.55X7.1+2.45X7.1
777X9+1111X3
0.64X25X7.8+2.2
2-2.5+2.5-2
194-64.8-1.8X0.9
36.72-4.25X9.9
5180-705X6
24-2.4-2.5X0.8
(4121+2389)一7
671X15-974
469X12+1492
405X(3213-3189)
19.4X6.1X2.3
5.67X0.2-0.62
18.1X0.92+3.93
0.043X24+0.875
0.4X0.7X0.25
0.78+5.436+1
4.07X0.86+9.12
240X78-(154-115)
2160一〔(83-79)X18〕
280+840-24X5
325一13X(266-250)
85X(95—1440-24)
58870一(105+20X2)
1437X27+27X563
81432-(13X52+78)
[37.85-(7.85+6.4)]X30
(947—599)+76X64
36X(913—276一23)
[192—(54+38)]X67
81432-(13X52+78)
(947—599)+76X64
60—(9.5+28.9)一0.18
0.12X4.8-0.12X4.8
(58+37)-(64-9X5)
812-700-(9+31X11)
156X[(17.7-7.2)一3]
(3.2X1.5+2.5)-1.6
85+14X(14+208-26)
120-36X4-18+35
9.72X1.6-18.305-7
3.2X(1.5+2.5)-1.6
(58+37)-(64-9X5)
(3.2X1.5+2.5)-1.6
120-36X4-18+35
(58+37)一(64-9X5)
[(7.1-5.6)X0.9-1.15]一2.5
(3.2X1.5+2.5予1.6
5.4一[2.6X(7-2.9)+0.62]
12X6一(12-7.2)-6
3.2X6+(1.5+2.5)-1.6
(3.2X1.5+2.5)-1.6
120-144-18+35
347+45X2-4160-52
(58+37)-(64-9X5)
95-(64-45)
812-700-(9+31X11)
120-36X4-18+35
(6.8-6.8X0.55)一8.5
0.12X4.8-0.12X4.8
0.8X〔15.5-(3.21+5.79)〕
0.64X25X7.8+2.2
2-2.5+2.5-2
194-64.8-1.8X0.9
36.72-4.25X9.9
5180-705X6
24-2.4-2.5X0.8
671X15-974
(4121+2389)一7
469X12+1492
405X(3213-3189)
0.8X[(10-6.76)一1.2]
19.4X6.1X24
5.67X0.2-0.62
18.1X0.92+3.93
24+0.875X99
0.4X0.7X0.25
0.75X102
100-56.23
31.50+160一40
(58+370)-(64-45)
32.120-144-18+35
33.347+45X2-4160-52
34(58+37)-(64-9X5)
35.95一(64-45)
36.178-145-5X6+42
420+580-64X21-28
37.812-700-(9+31X11)
(136+64)X(65-345一23)
38.85+14X(14+208-26)
120-36X4-18+35
0.12X4.8-0.12X4.8
(3.2X1.5+2.5)-1.6
3.2x(1.5+2.5)-1.6
31.50+160一40
(58+370)-(64-45)
32.120-144-18+35
33.347+45X2-4160-52
34(58+37)-(64-9X5)
35.95-(64-45)
36.178-145-5X6+42
420+580-64X21-28
812-700-(9+31X11)
(284+16)X
(136+64)X(65-345一23)
(512-8208一18)
(6.8-6.8X0.55)一8.5
0.12X4.8-0.12X4.8
45.6-1.6-4=
5.38+7.85-5.37=
46.7-0.8-1.2X5=
6-1.19X3-0.43=
47.6.5X(4.8-1.2X4)=
0.68X1.9+0.32X1.9
297X999
1983X21+21X3017
(0.123+123)X1009
34X24+3481
0.8X0.196+0.094
105+895X57
32.47X23+27
39.01X18.3-901
76.5+2-2X184
49+23X14
31X99
25X32X125
52X99+52