https://hoc24.vn/hoi-dap/question/181517.html
a. \(125.\left(-24\right)+24.225\)
\(=24.\left(-125+225\right)\)
\(=24.100\)
\(=2400\)
b. \(26.\left(-125\right)-125.\left(-36\right)+125.\left(-7\right)\)
\(=\left(-26\right).125-125.\left(-36\right)+125.\left(-7\right)\)
\(=125.\left[\left(-26\right)-\left(-36\right)+\left(-7\right)\right]\)
\(=125.3\)
\(=375\)
a, 125.(-24)+24.225
= -125.24+24.225
= 24(-125+225)
=24.100
=2400
b,26.(-125)-125(-36)+125.(-7)
=(-26).125-125(-36)+125.(-7)
=125(-26-(-36)+(-7))
=125.3
=375
Chúc bạn hk tốt nha!
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, \(26\cdot\left(-125\right)-125\cdot\left(-36\right)+125\cdot\left(-7\right)\)
\(=\left(-26\right)\cdot125-125\cdot\left(-36\right)+125\cdot\left(-7\right)\)
\(=125\cdot\left[\left(-26\right)+36-7\right]\)
\(=125\cdot3\)
\(=375\)
