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.
When the lower digit is greater than the upper one.
i love regrouping it is fun the end
it means to take away and borrow means to take away and regroup means to rearrang(make problem
it means to take away and borrow means to take away and regroup means to rearrang(make problem easier)
you need to regroup when the bottom number is bigger than the top number
To regroup means to rearrange groups in place value to carry out an operation. We use regrouping in subtraction, when digits in the minuend are smaller than the digits in the same place in the subtrahend. Here's how we regroup hundred and tens to subtract 182 from 427.
If the total in any column exceeds nine, you will have to regroup.