Add with regrouping
~9 min
If a column totals 10 or more, write the ones digit and regroup the tens.
Adding Ones with Regrouping
22
Th
0
H
0
T
2
O
2
When adding digits in the ones place, if the total is 10 or more, you must rename 10 ones as 1 ten and carry it to the tens column.
💡 Think of 10 ones as one single block of ten.