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a, \(125\times\left(-24\right)+24\times255=3120\)
\(b,26\times\left(-125\right)-125\times\left(-36\right)=1250\)
a)-125.24+24.225
=24.(-125+225)
=24.100
=2400
b)-26.125-125.(-36)
=125.(-26+36)
=125.10
=1250
a) \(A=125\left(-24\right)+24.225\)
\(=24\left[\left(-125\right)+225\right]\)
\(=24.100=2400\)
b) \(B=26\left(-125\right)-125\left(-36\right)\)
\(=125\left[\left(-26\right)-\left(-36\right)\right]\)
\(=125.10=1250\)
c) \(C=25\left(75-45\right)-75\left(45-25\right)\)
\(=25.75-25.45-75.45-75.25\)
\(=\left(25.75-75.25\right)-25.45-75.45\)
\(=-25.45-75.45\)
\(=45\left(-25-75\right)\)
\(=45\left(-100\right)=-4500\)
1. Tính nhanh:
a) \(125.\left(-24\right)+24.225\)
= \(-125.24+24.225\)
\(=24\left(-125+225\right)\)
\(=24\) . \(100\)
= \(2400\)
b) \(26.\left(-125\right)-125.\left(-36\right)+125.\left(-7\right)\)
\(=-26.125-125.\left(-36\right)+125.\left(-7\right)\)
\(=125\left[-26-\left(-36\right)+\left(-7\right)\right]\)
\(=125.3\)
\(=375.\)
a, \(125\cdot\left(-24\right)+24\cdot225\)
\(=\left(-125\right)\cdot24+24\cdot225\)
\(=24\cdot\left[\left(-125\right)+225\right]\)
\(=24\cdot100\)
\(=2400\)
b, \(26\cdot\left(-125\right)-125\cdot\left(-36\right)+125\cdot\left(-7\right)\)
\(=\left(-26\right)\cdot125-125\cdot\left(-36\right)+125\cdot\left(-7\right)\)
\(=125\cdot\left[\left(-26\right)+36-7\right]\)
\(=125\cdot3\)
\(=375\)
a. 24 x (-125 + 225)
= 24 x 100
=2400
b. -125 x ( 24 -36 )
= -125 x -12
= 1500
c. 512 x (2 -128+128)
= 512 x 2
= 1024
d. \([4.25].\left[\left(-2\right).\left(-5\right)\right].\left[125.\left(-8\right)\right]\)
= 100.10.(-1000)
= -1000000
a. 24 x (-125 + 225)
= 24 x 100
=2400
b. -125 x ( 24 -36 )
= -125 x -12
= 1500
c. 512 x (2 -128+128)
= 512 x 2
= 1024
d.
= 100.10.(-1000)
= -1000000
a)125.(-24)+24.225
=(-125).24+24.225
=24.[(-125)+225]
=24.100
=2400
Các câu khác bạn làm tương tự nha
a ) \(125\times\left(-24\right)+24\times225\)
\(=24\left[\left(-125\right)+225\right]\)
\(=24\times100\)
\(=2400\)
b ) \(26\times\left(-125\right)-125\times\left(-36\right)\)
\(=125\left[\left(-26\right)-\left(-36\right)\right]\)
\(=125\times10\)
\(=1250\)
a)125.(-24) + 24.225
= 125. [(-24) + 24].225
= 125.0.225
= 0.
a: =34x(-100)=-3400
b: =41(-76-24)=-4100
c: =-24(125-225)=2400
d: =26(-237+137)=-2600
e: =25(-63+23)=25x(-40)=-1000
2/ 125 x (-24+24)
= 125 x 0 =0
3/ -125 x 23 + 23 x 225
= 23 ( -125 + 225)
= 23 x 100 = 2300
https://hoc24.vn/hoi-dap/question/181517.html
a. \(125.\left(-24\right)+24.225\)
\(=24.\left(-125+225\right)\)
\(=24.100\)
\(=2400\)
b. \(26.\left(-125\right)-125.\left(-36\right)+125.\left(-7\right)\)
\(=\left(-26\right).125-125.\left(-36\right)+125.\left(-7\right)\)
\(=125.\left[\left(-26\right)-\left(-36\right)+\left(-7\right)\right]\)
\(=125.3\)
\(=375\)