Question

how to solve 999×999 without actual multiplication
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Answer 1

Step-by-step explanation:

999 = 1000-1

999 = 1000-1

Now,

999 * 999 = (1000-1) * (1000-1)

(1000-1)^2

Now this is an identity solve this and you will get your ans

Answer 2

Answer:

998001

Step-by-step explanation:

We can solve this by using algebraic identities.

999×999

= (1000-1)(1000-1)

= (1000-1)²

Here, the identity used is (a-b)²=a²-2ab+b²

= 1000² - 2000 + 1²

= 1000000 -2000 +1

= 998001

Using these identities makes calculations simpler and easier.