Question

455 by 999 using suitable Identity

Answer 1

Step 1: Hello, this is your question-455*999

Step 2:We can write it as 455*(1000-1)

Step 3:Use Distributive property 455*1000-455*1

Step 4:Subtract 455000-455

Step 5:Get the answer 454545

Concept:Distributive property means that a(b+c)=a*b+a*c

I used this property to get the answer easily

                                   $\sqrt{Bye!}$