Ta có : 24 x 18 + 12 x 63 + 12
= 12 x 36 + 12 x 63 + 12 x 1
= 12 x ( 36 + 63 + 1)
= 12 x 100
= 1200
Ta có : 24 x 18 + 12 x 63 + 12
= 12 x 36 + 12 x 63 + 12 x 1
= 12 x ﴾ 36 + 63 + 1﴿
= 12 x 100
= 1200
24 x 18 + 12 x 63 + 12
=12*2*18+12*63+12*1
=12*36+12*63+12*1
=12*(36+63+1)
=12*100
=1200