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:
