3 x 23 = 69
3 x 23 = 20 x 3 + 3 x 3
= 60 + 9
= 69
23x
3
69
4 x 234 = 936
4 x 234 = 200 x 4 + 30 x 4 + 4 x 4
= 800 + 120 + 16
= 920 + 16
= 936
234x
4
936