With number expansion concept, you will understand the concept of number representation. This will help you to perform complex manipulations in easy manner.

Understand that the concepts may not feel useful for now but remember we are setting up a strong foundation for your learning journey

**Expand 78**

78 is a two digit number where

8 => is present in unit place

7=> Present in tens place

So 78 can be written as

**Expand 278**

Here we got 3 digit number where

8=> is present in unit place

7=> is present in tens place

2=> is present in hundred place

So we can expand number as

Now let us take a leap here and solve one difficult question

**Expand 87254**

Here we got 5 digit number where;

4=> is present in units place

5=> is present in tens place

2=> is present in hundred place

7=> is present in thousand place

8=> is present in ten thousand place

So we can expand number as: