2.6x7.4+0.26x25+0.026x10
2.6x7.4+0.26x25+0.026x10
原式=0.26×(74+25+1)
=0.26×100
=26
晕了!
2.6x7.4+0.26x25+0.26x10
2.6×7.4+0.26×25+0.26×10
=0.26×74+0.26×25+0.26×10
=0.26×(74+25)+2.6
=0.26×99+2.6
=0.26×100-0.26+2.6
=26-0.26+2.6
=28.34
2.6x7.4+0.26x25+o.026x10的简便运算
原式=2.6x7.4+2.6x2.5+2.6x0.1
=2.6x(7.4+2.5+0.1)
=2.6x10
=26
或者:
原式=0.26x74+0.26x25+0.26
=0.26×(74+25+1)
=0.26×100
=26
(75-25)x10=()x10-25x()
(75-25)x10
=75x10-25x10
75x10-25x10
=750-250
=500
如有帮助请采纳,
如对本题有疑问可追问,Good luck!
(75-25)x10[]x10-25x[]
你好:
你的意思是:(75-25)*10=10x-25x吗,这样求x
50*10=-15x
15x=-500
3x=-100
x=-3分之100
x=-100/3
x=-33又3分之1
5x10x15x20x25x.x100的末尾有几个0
11个,
10,20,30,40,50,,100
5不会产生0
你数数吧
[25x10 (25x2 10x2)x2]/(0.1x0.1)=多少
[25x10 +(25x2 +10x2)x2]÷(0.1x0.1)
=【250+(50+20)×2】÷0.01
=【250+140】÷0.01
=390÷0.01
=39000
[1x2x3x4x5x6x7.x10x11]除[22x24x25x27]的答案
解:
原式=
22x24x25x27/2/3/4/5/6/7/8/9/10/11=
(22/2/11)x(24/8/3)x(25/5)x(27/9)/4/6/7/10=
1x1x5x3/4/6/7/10=
1/4/7=
二十八分之一
△+□=24 那么□x(△x2)=( ) (□x10)x(△x10)=( )
△x□=24 那么
□x(△x2)=( 48 )
(□x10)x(△x10)=( 2400 )
4.2x10x10x10x10x(t-9)=4.2x10x10x10x20x(t-40)=4.2x10x10x10x6x(100-t)这个方程怎么解?
4.2x10x10x10x10x(t-9)=4.2x10x10x10x20x(t-40)>
4.2x10x10x10x10x(t-9)=4.2x10x10x10x10x2x(t-40)>
t-9=2x(t-40)=2t-80>
0=2t-80-t+9>
t=71