Answer:
Yes, we have to regroup. Why because of place value chart, we have to regroup.
Explanation:
When we add, we have to add the numbers according to the place value chart.
Tens ones
4 3
2 8
-----------------
7 1
When we add ones place, we get 3 + 8 = 11, it is a two digits number, so place ones place (1) and carry over the tens (1) to the tens place.
Already, we have 4 and 2 in the tens place, another 1 tens adds to tens place.
4 + 2 + 1 = 7
Hope this will helpful.
Thank you.