五年级上册数学算术题?五年级数学上册简便计算是如下:1、24.6-3.98+5.4-6.02 解析:此题利用加法交换结合律,凑整再计算。步骤如下:24.6-3.98+5.4-6.02 =(24.6+5.4)-(3.98+6.02)=30-10 =20 2、那么,五年级上册数学算术题?一起来了解一下吧。
6.28×3.53.6×102 17×40=680, 100-63=37, 3.2+1.68=4.88, 2.8×0.4= 1.12
14-7.4=6.6, 1.92÷0.04=48, 0.32×500=160, 0.65+4.35= 5
10-5.4=4.6, 4÷20=0.2, 3.5×200=700, 1.5-0.06=1.44
0.75÷15=0.05, 0.4×0.8=0.32, 4×0.25=1, 0.36+1.54=2
1.01×99=99.99, 420÷35=12, 25×12=300, 135÷0.5=270
3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4
1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4
3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5
0.51÷17=0.03, 32.8+19=51.8, 5.2÷1.3=4, 1.6×0.4= 0.64
4.9×0.7=3.43, 1÷5=0.2, 6÷12=0.5, 0.87-0.49=0.38
把答案也发给你好了!
26×83=36×30=
3.14÷2= 2.1÷33=12÷7.2= 1.4÷48=
11÷9.9=123÷0.369=36÷2.4= 23÷0.0069=
33÷72= 87÷0.3= 12÷600= 1.9÷38=
12÷24= 2.6÷130=4.68÷1.2= 2.38÷0.34=
5.2÷0.32= 161÷0.46= 56.28÷0.67=1736.8÷16=
12.8÷1.6=0.988÷0.38= 7.67÷0.59= 8.32÷3.2=
225÷1.8=2 1.4 5÷15= 5628÷28= 3.3÷0.75=
7.65÷0.85= 12.6÷0.28=68.4÷9.12 = 7.41÷0.13=
0.912÷0.57= 7.65÷0.85=5.98÷0.23 =12.6÷0.28=
21÷1.4=35÷1.05= 33÷6= 11÷0.55=
111÷0.1221= 72.727272÷3.6= 77÷9.625= 31÷0.1=
3.8÷1900= 7.92÷3=
.5×8= 3.6×0.4= 39.68×0= 47.6×1=
4÷0.5= 12÷0.06= 12÷1.2= 3÷30=
0.15×7=3.2×6+3.2×4= 2.5×4×0.36=
0.2+0.8×0.5= 6.03×1000= 10×0.6= 6.45×0.01=
0.1×0.1= 0.24×0.5=5.4+3.6=1.25-0.25=
10.2×4.5= 2.5×6=9×0.25=0.125×4=
1.25×8×0.5=16×0.01=1.78÷0.3= 0.27÷0.003=
0.01÷0.1= 1.8×20=x-0.4x= 5d-2d=
3.6÷0.4= 0.6×0.8= 2.4×3= 0.12×0.7=
4÷5= 1.6÷0.5= 0.2÷0.05= 2.5×2.3×4=
1.5÷1.5+1.5= 3.6-1.2÷2.4=4.7×6+4×4.7=
0.5×4÷0.5×4= 38.5×0×0.38=0.6×0.8=3×0.9=
2.5×0.4= 3.6×0.4 12.5×8= 50×0.04= 80×0.3= 1.1×9
二、用竖式计算
8.08-2.68= 5.546+29.38=17.04×0.26 = 8.35×3.5=
三、竖式计算(得数保留一位小数)
0.43×0.29≈ 52.6×0.23≈4.58×0.37≈
四、竖式计算(得数保留两位小数)
4.3×8.14≈27.6×0.45≈27.6×0.45≈
20÷12≈2.9×1.8≈5.08×0.25≈
五、竖式计算(得数保留三位小数)
2.5÷0.7= 2.5÷0.7= 3.25×9.04=
六、竖式计算(用循环小数表示商)
36.8÷16≈10.1÷3.3≈15.3÷11≈0.78÷1≈
七、脱式计算
(2.65+2.77)÷(1.98-0.98)=3.7×91.6+6.3×91.6=
0.45×12×0.2= 6.2×2.1-2.12.8-2.8×0.15=
2.8×1.43+0.57=10-6.06+8.5=
6×0.25×1.8=144÷3.6+27.2=
0.87×3.16+4.64=6.8×0.75÷0.5=
13.75÷0.125–2.75= 53+23.4÷7.2=
2.881÷0.43-0.24×3.5=28-(3.4+1.25×2.4)=
(31.8+3.2×4)÷5= 31.5×4÷(6+3)=
0.64×25×7.8+2.2= 2÷2.5+2.5÷2=
194-64.8÷1.8×0.9=36.72÷4.25×9.9=
5180-705×6=24÷2.4-2.5×0.8=
3.416÷(0.016×35)=
八、用简便方法计算下面各题
5.12+2.54+4.88= 12.5×17.8×0.8= 9.9×2.5=
9.4×5.8+10.6×5.8=0.125×0.32×0.25= 9.6+9.6×99=
2.8×7.6+1.4×2.8 +2.8= 6.3×10.1= 0.25×3.2×12.5=
12.5×9.7?12.5×8.7= 3.7×91.6+6.3×91.6=
16.84÷40÷0.25= 12.5×0.4×2.5×8=9.5×101=
4.2×7.8+2.2×4.2=2.55×7.1+2.45×7.1=
九、解方程
4(x+0.3)=4.81.2x-0.8x=9.620+x=36
7x-55=590.7x=4.2(10-7.5)x=1
X×1.8=0.9720.06×X=1.02 X÷0.13=0.7
12.4÷X=31
十、列式计算
(1)一个数的25倍是37.75,这个数是多少?
(2)比47.88与3.8的商大42.5的数是多少?
(3)1.25乘4.2减5,差是多少?
(4)比4.7的1.5倍多3.05的数是多少?
(5)一个数的25倍是37.5,这个数是多少?
(6)比47.88与3.8的商大42.5的数是多少?
(7)60比一个数的3倍少30,这个数是多少?
(8)一个数的4倍比60多24,这个数是多少?
(9)用14.81与5.19的和,乘以它们的差,积是多少?
(10)126.8与15.7的和,乘以1.02,积是多少?
(11)0.6乘0.8的积加上0.12后,再除以1.2,商是多少?
十一、应用题
(1)工程队开凿一条长0.7千米的隧道,原来每天开凿0.024千米,开凿了15天。
计算如下:
640÷80=8
15×5=75
23×3=69
12×2×5=120
480÷80=6
16×5=80
27×3=81
90÷15=6 4
8÷4=12
640÷16=40
39÷3=13
24×20=480
32×3=96
48÷16=3
12×8=96
27×3=81
56÷14=4
24÷8=3
14×2=28
83-45=38
560÷80=7
96÷24=4
40÷20=2
40×30=1200
37+26=63
76-39=37
605+59=664
30×23=690
12×8=96
27+32=59
48+27=75
4500×20=90000
73+15=88
120×600=72000
200×360=72000
6800×400=2720000
280+270=450
4×2500=10000
6000÷40=150
5×1280=6400
4.3+2.7=7
0.75+0.25=1
4-0.26=3.74
0.35+2.7=3.07
4.6-1.9=2.7
0.83-0.3=0.53
3+0.05=3.05
7.2-3.8=3.4
0.07+0.6=0.67
1.39-0.39=1
10-5.4=4.6
25.6+23=48.6
1.25×8=10
6.35-1.35=5
0.4×125×25×0.8
=(0.4×25)×(125×0.8)
=10×100
=1000
1.25×(8+10)
=1.25×8+1.25×10
=10+12.5
=22.5
9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
1.24×8.3+8.3×1.76
=8.3×(1.24+1.76)
=8.3×3
=24.9
9999×1001
=9999×(1000+1)
=9999×1000+9999×1
=10008999
14.8×6.3-6.3×6.5+8.3×3.7
=(14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
8.3×(6.3+3.7)
=8.3×10
=83
1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
933-157-43
=933-(157+43)
=933-200
=733
4821-998
=4821-1000+2
=3823
I32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
9048÷268
=(2600+2600+2600+1248)÷26
=2600÷26+2600÷26+2600÷26+1248÷269
=100+100+100+48
=348
2881÷ 43
=(1290+1591)÷ 43
=1290÷43+1591÷43
=30+37
=67
3.2×42.3×3.75-12.5×0.423×16
=3.2×42.3×3.75-1.25×42.3×1.6
=42.3×(3.2×3.75-1.25×1.6)
=42.3×(4×0.8×3.75-1.25×4×0.4)
=42.3×(4×0.4×2×3.75-1.25×4×0.4)
=42.3×(4x0.4x7.5-1.25x4x0.4)
=42.3×[4×0.4×(7.5-1.25)]
=42.3×[4×0.4×6.25]
=42.3×(4×2.5)
=4237
1.8+18÷1.5-0.5×0.3
=1.8+12-0.15
=13.8-0.15
=13.65
6.5×8+3.5×8-47
=52+28-47
=80-47
(80-9.8)×5分之2-1.32
=70.2X2/5-1.32
=28.08-1.32
=26.76
8×7分之4÷[1÷(3.2-2.95)]
=8×4/7÷[1÷0.25]
=8×4/7÷4
=8/7
2700×(506-499)÷900
=2700×7÷900
=18900÷900
=21
33.02-(148.4-90.85)÷2.5
=33.02-57.55÷2.5
=33.02-23.02
=10
(1÷1-1)÷5.1
=(1-1)÷5.1
=0÷5.1
=0
18.1+(3-0.299÷0.23)×1
=18.1+1.7×1
=18.1+1.7
=19.8
以上就是五年级上册数学算术题的全部内容,24.6-3.98+5.4-6.02 =(24.6+5.4)-(3.98+6.02)=30-10 =20 2、27×17/26 解析:此题先用加法分配律,把27转换成(26+1),再利用乘法结合律,使得运算简便。