Explain how to regroup 43 ones as tens and ones

The number 43 has 4 tens and 3 ones.

Now we have 43 ones given, in order to regroup them, we need to group 4 rows of 10 each and 3 rows of 1 each.

By this, we will be having:

4 rows of 10 each = 4*10 = 40

3 rows of 1 each = 3*1 = 3

which is the needed 43.