Yes.
No
Yes, you do 73 -35 ___ 38
If the total in any column exceeds nine, you will have to regroup.
Yes.
38
When the lower digit is greater than the upper one.
No.
Yes.
No
Yes, you do 73 -35 ___ 38
No, you need a miracle! 73 does not equal 35 and no amount of regrouping will alter that.
If the total in any column exceeds nine, you will have to regroup.
no
To subtract 316 from 624, you need to regroup twice. Start by subtracting 6 from 4 in the ones place, which requires regrouping from the tens place. Then, subtract 1 from 2 in the tens place, which also requires regrouping from the hundreds place. Finally, subtract 3 from 5 in the hundreds place to get the final result of 308.
18
You need to regroup when you have something like 46-39. You would cross out the 6 and make it a 16, because you are taking ten from the 4, then you cross out the 4 then make it a three, then you should get 7.