When the two numbers have an answer that is greater than or equal to ten.
25
4/-3 8
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.
78 can be regrouped into 6 tens and 18 ones.
when you add a number from 3 to 9
25
no
4/-3 8
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.
No.
8 tens.
1 tens and 2 0nes
Yes.
When the squad leader deems it necessary to align, it means there is a need to regroup.
500+10+6 = 516
78 can be regrouped into 6 tens and 18 ones.
yes