Question

Tính:

125.(-24)+24.225 =?

26.(-125)-125.(-36)=?

Answer 1

\(125.\left(-24\right)+24.225\)

\(=\left[\left(-125\right)+225\right].24\)

\(=100.24=2400\)

~ Hok tốt ~

Answer 2

\(26.\left(-125\right)-125.\left(-36\right)\)

\(=26.\left(-125\right)+\left(-125\right).\left(-36\right)\)

\(=\left[26+\left(-36\right)\right].125\)

\(=\left(-10\right).125=-1250\)

~ Hok tốt ~

Answer 3

a,\(125.\left(-24\right)+24.225\)

\(=\left[\left(-125\right)+225\right].24\)

\(=100.24\)

\(=2400\)

b,\(26.\left(-125\right)-125.\left(-36\right)\)

\(=26.\left(-125\right)+\left(-125\right).\left(-36\right)\)

\(=\left[26+\left(-36\right)\right].\left(-125\right)\)

\(=-10.\left(-125\right)\)

\(=1250\)

Answer 4

125 . ( -24 ) + 24 . 225

= ( -125 ) . 24 + 225 . 24

= 24 . [ 225 + ( - 125 ) ]

= 24 . 100

= 2400