12 x 30 +12 x 70= 12 x(70+30)
= 12 x 100
=1200
12x30+12x70=12x(30+70)
=12x100
=1200
k nha
12 x 30 + 12 x 70
= 12 x (30 + 70 )
= 12 x 100
= 1200
12 x 30 + 12 x 70
= 12 x (30 + 70 )
= 12 x 100
= 1200
12*30+12*70
=12*(70+300
=12*100
=1200
12 x 30 + 12 x 70
= 12 x ( 30 + 70 )
= 12 x 100
= 1200