Double Digit Subtraction Strategies
It's not just "borrowing" any more...
These are the different ways we've been learning to subtract.
Break Apart Quick Picture
74 74
-58 -58
16 16
Subtract the 10's Draw the tens and ones.
Subtract part of the ones If you don't have enough ones
to get to a friendly # then break a ten apart and move
Subtract the other part of the ones. it to the ones side.
Hundreds Chart or Number Line Regroup
Count Forward on a Number Line