Regrouping Tens and Ones

When there are 10 or more ones, we regroup.

For example: Consider 14 ones. Let's regroup it as tens and ones.

14 ones can be written as:

14 ones = 10 ones + 4 ones

 

Here, we regroup the ones.
 

7 b
 

So, 14 ones can be written as:
 

7 c                  

 

So, 14 ones = 1 ten + 4 ones.





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Help

The correct answer is

Remember :

The smallest number is the one that comes first while counting.

Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.