When the sum of the digits you are adding is 10 or larger.
because 1 is toobig
With addition, you need to regroup in the event that there are more than 10 ones or 10 tens. In a subtraction, you must regroup whenever there are insufficient ones or tens to subtract.
because sometimes the total is too big
When the lower digit is greater than the upper one.
3 addends mean 3 numbers. Regroup I believe means carry over. So I'm thinking something like 36+29+12=
yes u can if you need too
because 1 is toobig
With addition, you need to regroup in the event that there are more than 10 ones or 10 tens. In a subtraction, you must regroup whenever there are insufficient ones or tens to subtract.
because sometimes the total is too big
When the lower digit is greater than the upper one.
yes because i said so losers
No
you need to regroup when the bottom number is bigger than the top number
3 addends mean 3 numbers. Regroup I believe means carry over. So I'm thinking something like 36+29+12=
108
no
If the total in any column exceeds nine, you will have to regroup.