五年级小数竖式计算.docx
《五年级小数竖式计算.docx》由会员分享,可在线阅读,更多相关《五年级小数竖式计算.docx(14页珍藏版)》请在冰豆网上搜索。
![五年级小数竖式计算.docx](https://file1.bdocx.com/fileroot1/2023-7/5/fed8d897-968a-4bbf-8511-4b47bd92ab88/fed8d897-968a-4bbf-8511-4b47bd92ab881.gif)
五年级小数竖式计算
68.8÷4= 85.44÷16= 67.5÷15= 289.9÷18=
101.7÷9= 243.2÷64= 16.8÷28= 15.6÷24=
0.138÷15= 1.35÷27= 0.416÷32= 3.64÷52=
91.2÷3.8= 0.756÷0.18= 51.3÷0.27= 26÷0.13=
210÷1.4= 2.688÷0.56= 10.625÷25= 126÷45=
10÷25= 2.7÷7.5= 15÷0.06= 25.6÷0.032=
14.36÷2.7≈ 8.33÷6.2≈ 1.7÷0.03≈ 32÷42≈
1.25÷1.2≈ 2.41÷0.7≈4.5×0.07=6.3÷0.09=
2.5×3.6=19.8÷3.3=5÷0.25=0.76÷0.4=
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=
13.42×4.73=9.65×8.12=7.23×1.2=6.3×12=
2.14×8.3=4.9×1.12=21.98×2.31=0.24×28.37=
29.13×3.14=9.88×11.21=5.5÷11=7.5÷0.5=
6÷1.2=3.2÷8=7.2÷0.9=24÷1.2=
12÷0.12=6.75÷0.25=12÷0.75=21÷0.7=
16.9÷0.13=1.55÷3.9=3.7×0.016=5.63÷6.1=
0.3÷0.15=0.5×0.12=0.6×3÷0.6×3=1.4×5=
0.1×0.01=0.35×8=7.35÷7=1÷0.01=
4.692÷2.3= 5.5×2.02= 3.14×0.68=3.07×1.5=
5.26÷1.6 =0.85×6.3 = 52.6×0.252= 35÷73 =
4、判断。
(1)如果两个因数的积不是小数,那么这两个因数一定不是小数。
( )
(2)一个不等于0的数的1.02倍一定比原数大。
( )
(3)因为12×35=420,所以1.2×3.5=42.( )
(4)在表示近似数时,5.0也可以写成5。
( )
(5)整数乘法的交换律、结合律和分配律,对于小数乘法同样适用。
( )
(6)0.25×9.9=0.25×(10-1)=0.25×10-0.25。
( )
(7)4.10与4.1大小相等,表示意义也相同。
( )
(8)3.994精确到百分位约是4.00.( )
(9)一个数(0除外)除以小数,商一定比这个数大。
( )
(10)两个数相除的商是0.9,被除数不变,除数扩大10倍,商是9.( )
5、把下列各式中的乘积点上小数点,使等式成立。
9.36×2.7=25272 0.89×6.43=57227
52.1×1.98=103158 26.15×3.4=8891
4.5×0.07=6.3÷0.09=2.5×3.6=19.8÷3.3=
5÷0.25=0.76÷0.4=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=13.42×4.73=9.65×8.12=\
7.23×1.2=6.3×12=2.14×8.3=4.9×1.12=
21.98×2.31=0.24×28.37=29.13×3.14=9.88×11.21=
920÷40=780÷60=960÷40=79×97=
28×32=54×25=48×61=23×37=
46×58=326×52=45×12=33×12=
32×69=0.828÷3697.2÷247.65÷0.85
12.6÷0.288.61÷2.158.75÷0.25220.3÷0.7
58.8÷0.2858.9÷317.67÷5.983.2÷3.2
97.2÷5.48.4÷2418÷4823÷184
7.65÷250.98÷352.525÷2584÷56
140.7÷382.8÷721.56÷2.4=1.44÷0.015=
2.898÷0.18=85.44÷1642.84÷7101.7÷9
67.5÷15230.4÷621.24÷360.736÷23
43.5÷1235.21÷739.6÷246.21÷0.03
85.44÷16 42.84÷7 101.7÷9 67.5÷15
230.4÷6 21.24÷36 0.736÷23 43.5÷12
35.21÷7 39.6÷24 6.21÷0.03 210÷1.4
51.3÷0.27 91.2÷3.8 0.756÷0.180.66÷0.3
11.97÷1.5 69.6÷2.9 38.4÷0.8 15÷0.06
0.828÷3697.2÷247.65÷0.8512.6÷0.28
8.61÷2.158.75÷0.25220.3÷0.758.8÷0.28
58.9÷317.67÷5.983.2÷3.297.2÷5.4
8.4÷2418÷4823÷1847.65÷25
0.98÷352.525÷2584÷56140.7÷382.8÷72
1.56÷2.4=1.44÷0.015=2.898÷0.18=85.44÷16
42.84÷7101.7÷967.5÷15230.4÷6
21.24÷360.736÷2343.5÷1235.21÷7
39.6÷246.21÷0.0385.44÷1642.84÷7
101.7÷967.5÷15230.4÷621.24÷36
0.736÷2343.5÷1235.21÷739.6÷24
6.21÷0.03210÷1.451.3÷0.2791.2÷3.8
0.756÷0.180.66÷0.311.97÷1.569.6÷2.9
38.4÷0.815÷0.061.44÷0.015=2.898÷0.18=
1.44÷0.015=2.898÷0.18=0.328÷8=3.51÷3=
7.21÷7=23÷25=3.64÷14=37.8÷28=
600÷50=42×0.16=84×0.25=0.36×0.9=
2.4÷3=20×0.5=0.8×6=1000×0.09=1.35÷27=58×0.32=1.08×52=8.5×0.54=5.62×2.4=0.28×0.16=1.06×0.82=0.06×0.75=0.41×2.01=0.63×0.12=3.5×2.011.26÷0.84=
1.45×6.5+0.55×6.56.12×99+6.125.9×101-5.9
8÷()=0.825.8÷()=0.258452÷()=45.270÷()=0.7
800.9÷()=80.09360÷()=0.366.54×1.04=0.522÷0.18=
33÷7.5=10÷0.8=0.6÷0.015=0.532÷0.4=
0.05÷0.025=0.21÷0.012=3.6÷4.8=8.01÷0.9=
0.51÷0.85=6.3÷0.42=25.2÷63=0.456÷1.5=
16.43+3.6=21.5-20.83=5.7+4.33=20.1-6.9=
0.65+19.5=0.29×3.18(保两)4.48÷2.8+1.5
35.4-9.6÷(2.65-1.05)6.3×【(0.9+1.8)÷4.5】
以下简便运算
12.5×32×0.2529.4+1.72+3.565.17-1.8-3.2
13.75-(3.75-6.48)3.45+7.7+16.55+1.321.63-(8.5+9.63)
36.59-(6.59+7.3)7.23+6.84-0.84+2.77
0.312×12=42×0.16=84×0.25=58×0.32=
1.08×52=54×0.47=420×3.5=9.3÷100×1000=
2871÷0.33=50-16.66=6×0.73=3.82×0.45=
3.1×4.05=0.522÷0.18=7.54÷0.26=91.2÷0.024=
1、用竖式计算
0.396÷1.2= 0.756÷0.36= 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=13.95÷3.1=
6.4×2.5= 4.48×4.4= 5.25×15 = 4.6×0.6=
35.4×4.2= 0.042×0.54 = 0.76×0.320.25×0.046=
0.45×0.73= 0.43×0.28= 2.52×3.4= 1.08×25=
0.12×0.5×0.16= (保留两位小数) 3.25×9.04= (用除法验算)
4.8×0.25= 0.125×1.4≈ 10.75÷12.5= (用乘法验算)
2.5÷0.7= (保留三位小数) 10.1÷3.3= (商用循环小数表示)
8.9×0.05= 3.08×0.43= 1.5×26.7=5.22÷29=
18.72÷3.6= 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=2 6×15.7+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= 3.6×9.85-5.6 = 8.05×3.4+7.6 =
6.58×4.5×0.9= 2.8×0.5+1.58= 4.85+0.35÷1.4=
8.7×17.4-8.7×7.4= (1.25-0.125)×8=
32+4.9-0.9= 4.8-4.8×0.5 = 4.8×100.1 =
56.5×99+56.5 = 7.09×10.8-0.8×7.09=
12.5×0.4×2.5×8 = 0.87×3.16+4.64 = 2.13.×0.×8257=
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=
4.2.×1.+1.×1.75=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 =
3.8×10.1=0.25×39+0.25= 0.125×72 = 14.7÷0.07=
46×0.33+54×0.33= 6.81+6.81×99 = 0.25×185×40=
(8×5.27)×1.25 = 6.8×0.75÷0.5 =1.53+23.4÷7.2=
3.75÷0.125–2.75= 13.5×0.98= 12.5×8.8=9.5×99=
1.2×1.4=0.37×8.4=3.14×2.8=0.15×2.34=
0.85×1.12=0.86×5.4=40÷14=45.5÷38=
26.37÷31=1560÷35=4.8÷2.3=1.55÷3.9=
7.2÷2.1=3.87÷7=146.4÷13=0.382×0.13=
5.63÷6.1=2.84×0.03=26.37÷31=32÷42=
2.84×0.03=4.8÷23=0.382×0.13=4.2÷4.5=
2.52×3.4= 1.08×55= 0.12×0.44=0.24×2.15=
0.25×0.046= 6.03×0.25= 2.93-1.837= 3.568÷16=
26.55÷59= 117÷18= 9.48+1.36= 36.9÷18=
四、单位换算(12%)
0.24米=( )厘米 0.09吨=( )千克
8.54平方分米=( )平方厘米 3.64千米=( )米
140平方厘米=( )平方分米 785米=( )千米
23分米=( )米 60克=( )千克
2.06千克=( )克 3元4角=( )元
15厘米=( )米 7吨60千克=( )吨
五、脱式计算(能简算的要用简便方法计算)(24%)
15.89+(6.75-5.89) 5.17-1.8-3.2 13.75-(6.48+3.75)
3.68+7.56-2.68 7.85-(2.34-0.15) 35.6-1.8-15.6-7.2
13.35-4.68+2.65-5.32 73.8-1.64-13.8-5.365.4÷0.15=
2、脱式计算(能简算的要简算)。
0.125×0.25×8×4 7.4×0.28+0.28×2.623.4÷5.85=
4.8×0.9+0.48 (4-0.4)×2.50.544÷0.025=
2、脱式计算(能简算的要简算)
0.125×32 0.78×101 3.26×5.7-32.6×0.07
0.25×0.06 0.125×0.4 0.64×0.75 14.5×0.28
10.32÷2 12.8÷4 37.8÷9 10.32÷2.4
3.25÷2.55.46÷1.3 0.465÷0.15 0.784÷0.56
65÷52 11.2÷0.05 9÷0.18 1.8÷20
7÷0.56 7.3÷0.25 0.798÷0.38 9.8÷1.4
2.52÷2.4 60÷4.8 72.8÷0.8 0.315÷1.5
31÷25 13÷20 0.092÷23 72.8÷8
0.315÷0.15 96÷64 176÷25 11.4÷0.24 2.08÷26 36÷48 96÷0.64 7.56÷4.2
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=
1.64+2.35= 8.65-6.31= 28.448÷14= 10.88÷34=
0.58×250= 12.5+3.6= 10-7.64= 1.86×7=
13.88-6.29= 926×0.15= 8÷500= 100.2-2.28
26.3+7.93= 23×7.06= 44÷9(精确到百分位)
18÷24= 43.68÷26= 25.3÷0.88=124.8÷0.24=
0.1575÷3.15= 0.612÷1.8= 16.787÷0.28 (保留一位小数)
2.36×0.22 2.8×4.58 3.57÷4.2 45×2.46
82.8÷36382.5÷45 6.4×5.480.756÷0.36=
0.396÷1.2= 27.5÷0.025= 5.08×0.65(得数保留两位小数)
9.62÷0.158(得数保留两位小数)14.2÷11(商用循环小数表示)203.5÷11=
25.2÷6=34.5÷15=5.6÷4=1.8÷12=
1.8÷12=7.83÷9=4.08÷8=0.54÷6=
6.3÷14=72÷15=14.21÷7=24÷15=
1.26÷18=43.5÷29=18.9÷27=1.35÷15=
28.6÷11=20.4÷24=3.64÷52=15.6÷12=
328÷16=1.35÷27=7.65÷0.85=12.6÷0.28=
62.4÷2.6=0.544÷0.16=1.44÷1.8=11.7÷2.6=
19.4÷12=5.98÷0.23=19.76÷5.2=10.8÷4.5=
21÷1.4=8.84÷1.7=6.21÷0.03=1.89÷0.54=
0.51÷0.22=7.1÷2.5=1.998÷0.54=1.28÷0.16=
2.1÷0.4=2.56÷3.2=50.18÷38.6=4.68÷7.5=