五年级小数加减乘除混合运算计算题练习题.docx
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五年级小数加减乘除混合运算计算题练习题
五年级小数加减乘除混合运算计算题练习题
小数混合运算专项训练
1、解方程。
(1)5x=450
(2)12(6-x)=42
(3)1.2×6+4x=12(4)8.5x-x=22.5
2、用简便方法计算。
(1)0.25×3.2×12.5
(2)36×10.1
(3)0.25×44(4)22.2×4+17.8×4
3、用脱式计算。
(1)2.6+1.4×1.5-1.5
(2)(37-3.6÷4.8)÷12.5
0.78+5.436+14.8×5÷4+1÷4
9.9x5÷6+5÷610.3÷4x8÷9-1÷3
14.31x5÷6-5÷616.5÷9x18-14x2÷7
20.3x2÷9+1÷335.95÷(64-45)
36.178-145÷5×6+427.2÷0.8-1.2×5
6.5×(4.8-1.2×4)28-(3.4+1.25×2.4)
2.55×7.1+2.45×7.1777×9+1111×3
(31.8+3.2×4)÷531.5×4÷(6+3)
0.64×25×7.8+2.22÷2.5+2.5÷2
194-64.8÷1.8×0.936.72÷4.25×9.9
5180-705×624÷2.4-2.5×0.8
(4121+2389)÷7671×15-974
469×12+1492405×(3213-3189)
19.4×6.1×2.35.67×0.2-0.62
18.1×0.92+3.930.043×24+0.875
0.4×0.7×0.250.78+5.436+1
4.07×0.86+9.12240×78÷(154-115)
1437×27+27×563〔75-(12+18)〕÷15
2160÷〔(83-79)×18〕280+840÷24×5
325÷13×(266-250)85×(95-1440÷24)
58870÷(105+20×2)1437×27+27×563
81432÷(13×52+78)[37.85-(7.85+6.4)]×30
(947-599)+76×6436×(913-276÷23)
[192-(54+38)]×6781432÷(13×52+78)
(947-599)+76×6460-(9.5+28.9)÷0.18
2.881÷0.43-0.24×3.50.8×〔15.5-(3.21+5.79)〕
31.83.2×4)÷5194-64.8÷1.8×0.9
36.72÷4.25×9.93.416÷(0.016×35)
0.8×[(10-6.76)÷1.2](6.8-6.8×0.55)÷8.5
0.12×4.8÷0.12×4.8(58+37)÷(64-9×5)
812-700÷(9+31×11)156×[(17.7-7.2)÷3]
(3.2×1.5+2.5)÷1.685+14×(14+208÷26)
120-36×4÷18+359.72×1.6-18.305÷7
3.2×(1.5+2.5)÷1.6(58+37)÷(64-9×5)
(6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.8
(3.2×1.5+2.5)÷1.6120-36×4÷18+35
15-10.75×0.4-5.7347+45×2-4160÷52
(58+37)÷(64-9×5)[(7.1-5.6)×0.9-1.15]÷2.5
(3.2×1.5+2.5)÷1.65.4÷[2.6×(3.7-2.9)+0.62]
12×6÷(12-7.2)-63.2×6+(1.5+2.5)÷1.6
(3.2×1.5+2.5)÷1.6120-144÷18+35
347+45×2-4160÷52(58+37)÷(64-9×5)
95÷(64-45)812-700÷(9+31×11)
120-36×4÷18+35(6.8-6.8×0.55)÷8.5
0.12×4.8÷0.12×4.80.8×〔15.5-(3.21+5.79)〕
(31.8+3.2×4)÷531.5×4÷(6+3)
0.64×25×7.8+2.22÷2.5+2.5÷2
194-64.8÷1.8×0.936.72÷4.25×9.9
5180-705×624÷2.4-2.5×0.8
(4121+2389)÷7671×15-974
469×12+1492
405×(3213-3189)
0.8×[(10-6.76)÷1.2]
19.4×6.1×24
5.67×0.2-0.62
18.1×0.92+3.93
24+0.875×99
0.4×0.7×0.25
0.75×102
100-56.23
31.50+160÷40
(58+370)÷(64-45)
32.120-144÷18+35
33.347+45×2-4160÷52
34(58+37)÷(64-9×5)
35.95÷(64-45)
36.178-145÷5×6+42420+580-64×21÷28
37.812-700÷(9+31×11)(136+64)×(65-345÷23)
38.85+14×(14+208÷26)120-36×4÷18+35
(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.5
0.12×4.8÷0.12×4.8(3.2×1.5+2.5)÷1.6
3.2×(1.5+2.5)÷1.631.50+160÷40
(58+370)÷(64-45)32.120-144÷18+35
33.347+45×2-4160÷5234(58+37)÷(64-9×5)
35.95÷(64-45)36.178-145÷5×6+42
420+580-64×21÷28812-700÷(9+31×11)
(136+64)×(65-345÷23)(284+16)×(512-8208÷18)
120-36×4÷18+35(58+37)÷(64-9×5)
(6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.8
(3.2×1.5+2.5)÷1.6(23.2×(1.5+2.5)÷1.6
45.6-1.6÷4=5.38+7.85-5.37=
46.7÷0.8-1.2×5=6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)=0.68×1.9+0.32×1.9
297×9991983×21+21×3017
(0.123+123)×100934×24+3481
0.8×0.196+0.094105+895×57
32.47×23+2739.01×18.3-901
76.5+2-2×18449+23×14
31×9952×99+5225×32×125