Question

Evaluate the product without actual multiplication
101 × 99
​

Answer 1

$101 × 99$

$=(100+1)×(100-1)$

$=(100)²-(1)²$

$=10000-1$

$=9999$

Answer 2

Answer:

Step-by-step explanation:

101×99

=(100-1)(100+1). [a²-b²=(a+b)(a-b)]

=100²-1²

=10000-1

=9999.

Hope you got it and it is helpful to you.