a 36x 6+ 36x4
=36x[6+4]
=36x10
=360
b 1368 x99+1368
=1368 x[99+1]
=1368x100
=136800
a) 36x6+36x4=36x(6+4)=36x10=360
b) 1368x99+1368=1368x(99+1)=1368x100=136800
a) 36 x 6 + 36 x 4
= 36 x ( 6 + 4 )
= 36 x 10
= 360
b) 1368 x 99 + 1368
= 1368 x 99 + 1368 x 1
= 1368 x ( 99 + 1 )
= 1368 x 100
= 136 800