Question

1.62×0.38 by using identities​

Answer 1

Answer:

$1.62 \times 0.8 \\ = 0.6156 \\ = 0.62$

Answer 2

Answer:

1.62*0.38

(1+0.62)(1-0.62)

As,

(a+b)(a-b)=a²-b²

1²-(0.62)²

0.6156