(i) 2 x 103= 2 x 10 x 10 x 10 = 2,000
(ii) 72 x 22 = 7 x 7 x 2 x 2 = 196
(iii) 23 x 5 = 2 x 2 x 2 x 5 = 40
(iv) 3 x 44 = 3 x 4 x 4 x 4 x 4 = 768
(v) 0 x 102 = 0 x 10 x 10 = 0
(vi) 53 x 33 = 5 x 5 x 3 x 3 x 3 = 675
(vii) 24 x 32 = 2 x 2 x 2 x 2 x 3 x 3 = 144
(viii) 32 x 104 = 3 x 3 x 10 x 10 x 10 x 10 = 90,000