小学数学四则运算简便方法计算练习题.docx
《小学数学四则运算简便方法计算练习题.docx》由会员分享,可在线阅读,更多相关《小学数学四则运算简便方法计算练习题.docx(13页珍藏版)》请在冰点文库上搜索。
小学数学四则运算简便方法计算练习题
小学数学四则运算-简便方法计算练习题
1、368+2649+13512、89+101+111
3、24+127+476+5734、400-273-127
5、327+(96-127)6、72×98
7、442-103-1428、999+99+9
9、67×5×210、25×(78×4)
11、72×12512、9000÷125÷8
13、400÷2514、25×36
15、103×2716、76×102
17、3600÷25÷418、99×35
19、(25+12)×420、56×27+27×44
21、56×99+5622、125×25×8×4
23、25×32×12524、125×64
简便计算:
1.56×1.7+0.44×1.7-0.7
11.72-7.85-(1.26+0.46)
10.64+7.65×2.4+11.76
12.9÷〔14.66-(1.3+8.2)〕
9.83×(3.8-2.3)+1.5×6.17
6.752-〔4.7×(0.54-0.38)+2.8〕
15.4÷〔8×(6.34-4.59)〕
7000÷125=(7000×8)÷(125×8)
6400÷800=(6400÷100)÷(800÷100)
125×93×8
8×(500+125)
47×163+37×47
4000÷125
650÷25+26×99
17×101+83
17×99-83
125×8.81.3+4.25+3.7+3.7517.15-(3.5-2.85)
3.4×99+3.44.8×1.010.4×(2.5÷73)
12.3-2.45-5.7-4.552+0.125×0.25×64
64.2×87+0.642×130078×36+7.8×741-717+8
0.125×+0.5
42+4.58-43
25÷100
25-3-(2-1)
72×156-56×72
25×32×125
709×99+709
0.25×48
2.5×0.4×2
2×6.6+2.5×6
75.3×99+75.3
4.6×3.7+54×0.37
0.125×+×8.25+12.5%
11―6―1
15―4.25―5
19.82―6.57―3.43
4.6+3+6+5.4
4+2.25+5+7
9.63÷2.5÷4
8.37-3.25-(1.37+1.75)
乘法:
5.6×2.93.77×1.80.02×965.22×0.3
9.99×0.024.67×0.95×2.441.666×6.1
9.432×0.0025.6×6.54.88×2.95.61×4.3
8.9×2.45.5×559.77×0.021.384×5.1
8.78×832.6×610.059×0.24.268×1.7
57×5.79.46×2.8517.8×6.41.5×4.9
2.5×0.885.555×5.22.22×3.337.658×85
36.02×0.356.78×8
除法:
85.44÷1642.84÷7101.7÷967.5÷15
230.4÷621.24÷360.736÷2343.5÷12
35.21÷739.6÷246.21÷0.03210÷1.4
51.3÷0.2791.2÷3.80.756÷0.180.66÷0.3
11.97÷1.569.6÷2.938.4÷0.815÷0.06
(循环小数的用简便方法,除不尽保留2位小数):
8.2÷0.120.8÷0.9
76.4÷5.44.7÷3
1.25÷1.232÷42
14.36÷2.78.33÷6.2
1.7÷0.032.41÷0.7
用竖式计算
0.396÷1.2= 0.756÷0.36= 15.6×13=
0.18×15= 0.025×14= 3.06×36=
0.04×0.12= 3.84×2.6≈ 5.76×3= (保留一位小数)
7.15×22 90.75÷3.3 3.68×0.25
16.9÷0.13 1.55÷3.9 3.7×0.016
13.76×0.8= 5.2×0.6 8.4×1.3
6.4×0.5 4.48×0.4 5.25×5
35.4×4.2 0.042×0.54 0.76×0.32
0.25×0.046 2.52×3.4 1.08×25
0.12×0.5×0.16= 4.8×0.25= 0.125×1.4≈(保留两位小数)
2.5÷0.7= (保留三位小数) 10.1÷3.3= (商用循环小数)
10.75÷12.5= (用乘法验算) 3.25×9.04= (用除法验算)
3、脱式计算(能简算的要简算)
2.5×7.1×4 16.12×99+16.12 5.2×0.9+0.9
7.28×99+7.28 4.3×50×0.2 64-2.64×0.5
26×15.7+15.7×24 (2.275+0.625)×0.28
3.94+34.3×0.2 1.2×(9.6÷2.4)÷4.8
8.9×1.1×4.7 2.7×5.4×3.9 3.6×9.85-5.46
8.05×3.4+7.6 6.58×4.5×0.9 2.8×0.5+1.58
32+4.9-0.9 4.8-4.8×0.5 (1.25-0.125)×8
4.8×100.1 56.5×99+56.5 7.09×10.8-0.8×7.09
4.85+0.35÷1.4
8.7×17.4-8.7×7.4
12.5×0.4×2.5×8 0.87×3.16+4.64 9.5×101
0.68÷(5.2-3.5)×1.25
40.5÷0.81×0.18 4.8×(15÷2.4)
6.81+6.81×99 0.25×185×40 4.4×0.8-3.4×0.8
(9.37+9.37+9.37+9.37)×2.5
2.37×6.3+2.37×3.7 2.5×1.25×0.32 3.8×10.1
2.5×(3.8×0.04) 7.69×101 3.8×10.2
0.25×39+0.25 0.125×72 46×0.33+54×0.33
(8×5.27)×1.25 6.81+6.81×99 0.25×185×40
6.8×0.75÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.2
9.5×99 13.5×0.98 12.5×8.8
二、解方程:
54-X=24 7X=49 126÷X=42
13+A=28.5 2.4X=26.4 7.5x-3x=18
5×1.3-2x=5.5 24x+6x=63.6 5.6x+4.4x=5.2
x+3.86=5.4617.89-x=12.8940.8+x=57.3
x-3.25=162x+0.82=8.23+0.5x=7
7.8÷x=2.680x÷4=125-0.9x=2.75
2x+0.4x=486-2x+6x=1835x+13x=9.6
0.52×5-4x=0.60.7(x+0.9)=421.3x+2.4×3=12.4
3.5x=1402x+5=4015x+6x=168
5x+1.5=4.513.7—x=5.294.2×3—3x=5.1(写出检验过程)
20.5-4x=8.13.6x÷1.2=9.7518×1.5-1.7x=13.4
18.5x-9.9x=1.7219.2x+1.5x=32.17.2×5-8x=11.2
4x+3×0.7=6.5
(口算)
0.6×1.2= 0.84÷0.6= 4.5×0.1=
15×0.4= 0.1×0.5= 2.8÷7=
100÷0.01= 1.4×3= 0.72÷8=
6÷0.03= 0.5×0.6= 40×0.9=
4÷0.5= 7×2.1= 8.89+0.1=
24×0.25= 0.1÷0.01= 2.4×0.8=
9×0.4= 10×0.01= 30.2-3.02=
4.3-0.25= 1-0.82= 9.6÷0.3=
2.6×0.01= 0×25.4= 4.8×0.4=
7.2+2.8=12×2.5=2.63+0.37=
0.7×16-16×0.2=0.96÷0.3=1.5-4.5=
2.5×0.41.4×2.5×4=8-2.5=
6÷1.2=9.2÷2.3=24÷4+56÷4=
0.36+0.64=4÷0.25=1.8×5=
30×(200+3)=8.4÷4.2=8×1.5=
4.8÷0.3=2.73+1.5×4=
计算下面各题(能简算的要简算)
7.05×23.7+7.05×76.3
0.125×3.2×2.5
12.81-(1.5+7.81)
8.7×2.6+6.4×8.7+8.7
1025-1125÷4.5×3.6
12.25-3.1+0.85-6.17
(1.9-1.9×0.9)÷(3.8-2.8)
2.65×1.7+1.35×1.7
列竖式计算,得数保留一位小数。
1.2×1.4= 0.37×8.4= 3.14×2.8=
0.85×1.12= 0.86×5.4= 0.15×2.34=
40÷14= 26.37÷31= 45.5÷38=
1560÷35= 4.8÷2.3= 1.55÷3.9=
7.2÷2.1= 3.87÷7= 146.4÷13=
5.63÷6.1= 2.84×0.03= 0.38×0.13=
26.37÷31= 32÷42= 2.84×0.03=
4.8÷23= 0.382×0.13= 4.2÷4.5=
列竖式计算
1.64+2.35= 8.65-6.31= 28.448÷14= 0.58×250=
12.5+3.6= 10.88÷34= 10-7.64= 1.86×7=
13.88-6.29= 926×0.15= 8÷500=
26.3+7.93= 23×7.06= 100.2-2.28= 44÷9(精确到百分位)
三、计算(能简便的用简便方法计算)
8×25×1.25×16 4.04×250
45.55-(6.82+15.55) 3.2×99+3.2
4.8×39+61×4.8 34.52-17.87-12.23
2.5×56+4.5×65 489×101-489
4.57+3.17+3.43+5.83 4.6×56+48×4.6-4.6×4
竖式计算:
18÷24= 43.68÷26= 25.3÷0.88=
0.1575÷3.15= 0.612÷1.8= 16.787÷0.28
1、算下面各题
2.36×0.22 2.8×4.58 3.57÷4.2 82.8÷36
45×2.46 3.6÷0.24 382.5÷45 6.4×5.48
2、简便计算
3.6×2.5+7.5×3.6 2.5×1.2
0.125×32 4.3×0.9
6.5×102 3.25×99+3.25
18÷24= 43.68÷26=
25.3÷0.88=0.1575÷3.15=
0.612÷1.8= 16.787÷0.28