Question

If 614.6 x 9 5531.4 then find the product of each of the following without actually doing the multiplication.
(a) 61.46 × 9 (b) 0.6146 × 9

Answer 1

Answer:

(a) 553.14 ; (b) 5.5314

Step-by-step explanation:

61.46 × 9 = ( 61.46 × 10 ) - 61.46 = 614.6 - 61.46 = 553.14

0.6146 × 9 = (0.6146 × 10) - 0.6146 = 6.146 - 0.6146 = 5.5314

Interesting relation, isn't it? :)