五年级小数分数简便运算练习题.docx
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五年级小数分数简便运算练习题
五年级小数、分数简便运算练习题
5.83×2+4.27(45.9-32.7)÷8÷0.1259.7×99+9.7
4.36×12.5×815.6×13.1-15.6-15.6×2.10.65×101
27.5×3.7-7.5×3.78.54÷2.5÷0.43.83×4.56+3.83×5.44
52.8÷0.4÷0.25586-45×81÷270.25×16.2×4
3.72×3.5+6.28×3.53.6×1024.8×7.8+78×0.52
6.4×0.25+3.6×0.254.8-4.8×0.5(1.25-0.125)×8
4.8×100.156.5×9.9+56.57.09×10.8-0.8×7.09
320÷1.25÷818.76×9.9+18.763.52÷2.5÷0.4
.25×2.5×323.65×10.13.6-3.6×0.8
15.2÷0.25÷44.2×99+4.20.89×100.1
一、竖式计算。
1、(得数保留一位小数)
(1)0.38×0.23
(2)5.79×3.6 (3)4.6×0.25
(4)6÷24 (5)52.95÷75 (6)3.01÷7
(7)4.95÷11 (8)84.01÷31(用验算) (9)0.646÷19
2、(除不尽的保留两位小数)
(11)3÷1.2 (12)2.7÷0.36 (13)88.4÷1.7
(14)7.525÷0.38(15)4÷15 (16)91.2÷0.57
(17)84.84÷1.2 (18)5.63÷6.1(19)56÷77
(20)1.47÷4.2 (21)19.19÷0.95 (22) 56.29÷6.1
(23)23÷33 (24)7.41÷0.57 (25) 21÷240
(26)9.68÷16 (27)3.85÷0.76 (28)53.3÷4.7
(29)56.29÷6.1 (30)28.74÷31
3、得数用循环小数表示。
(31)0.2÷0.06 (32)13÷11 (33)30.1÷33
(34) 17÷15(35)7.8÷2.2 (36)5.52÷9
(37)67.8÷11 (38)8÷7
二、能简便计算的要简便计算
(39)2.5×3.6×0.9 (40)12.5×0.3×8.8 (41)1.25×(100-8)
(42)42÷(5.25÷0.25) (43)0.4+12.6÷0.28×0.2
(44)8.4-8.4×1.5÷1.8(45)12.5×4.5+4.5×12.5+12.5
(46)1.2×98 (47)2.4×1.25×0.3
(52)(0.25+2.5+25)×0.4 (53)3.5×1.02+35×0.098
(54)0.27×99+0.27 (55)2.5×3.2×0.125
(56)13.5÷2.5÷0.125÷0.4(57)2.61×4.5+2.61×6.5-2.61
(58)3.4×1.01 (59)6.5×1.98
(60)6.8×0.75÷0.5 (61)13.75÷0.125–2.75
(62)1.53+23.4÷7.2(63)22.9-13.68+12.68
(64)4.7×11-4.7 (65)28.8×6.3-6.3×18.8
(66)4.8+5.2÷4 (67)5.37—(2.37+1.8)
(69)2.85÷1.25÷0.8 (70)10.5×0.25×12
(71)3.7×91.6+7.3×91.6-91.6
(72)3.2×0.82+3.2×1.18 (73)4.05÷0.5-1.14
(75)12.5×0.4×2.5×8 (76)7.75×[20÷(3.24-3.04)]
(77)43.2-1.8×3-4.6(78)4.2×7.8+2.2×4.2
(79)0.87×3.16+4.64 (80)12.5×4.8
(81)4.7×4.7+4.7×6.3-4.7 (82)12.5×3.2×0.25
(83)23.4÷7.2+6.5×0.8 (84)20.64-9.83-0.17
(85)6.8÷(1.2+0.5)×0.04 (86)7.26-5.4+1.74-1.6
(87)2.06+2.06×99 (88)9.5×101
(91)2.8×0.5+0.5×28.2-0.5(92)3.2×2.5×1.25
(93)7.2÷[(7.22-6.4)÷0.9] (94)4.65×32+2.5×46.5+0.465×430
(96)0.46×1.9+0.54×1.9(97)3.45×102 (98)12.5×88
(99)13.65÷0.25÷4(100)28.98÷6.3-3.15
三、解方程
8x=24 x÷0.5=1.2 x-3.8=9.53 2.4x=26.4
4.06+x=7.11x÷1.5=1.5 3x-24=9 13x+2×7=40
96÷6+4x=563x-1.2x=9 3.6x+2×1.4=8.2
18×0.6-10x=4.260.4(x-3)=0.72 1.5×(10-x)=3
2.8÷(3+x)=3.5×0.20.8(x+4.8)=5.2 (x-6)÷0.5=3
4x-45+18=211.6x-9=3.8 4(0.9+x)=4.8
(x-1.9)÷5=1.1 0.4×20-0.4x=6 24x-8x=28.8
4.5x+1.6x=42.7(7-1.4)x=2.89x-5.2×6=4.8
(2.5+x)÷0.8=5 0.5×(x-1.8)=2.422.5×2+5x=135
4×(0.3+x)=4.8 0.4×20-0.4x=6(4x-0.32)+1.6=2.08
3.5x-x=17.5 4x-10=x+1108.9-5x=2.7
3.54×5-1.7x=13.45 1.6x+2x×0.7=184x-0.32+1.6=2.08
28-x+3.6=20 3.5x-0.8x=11.349x-14×5.5=58
6.2x-x=41.6 2.8÷(3+x)=3.5×0.23x+2×7=50
12(x+3.7)=144 5x-3×11=421.8×2-0.3x=2.4
7.2x-3.6x=9×0.4 x-0.8x+0.7x=8.1