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 = 410 = 40
3 rows of 1 each = 31 = 3
which is the needed 43.
