Wednesday, February 15, 2017
DD Subtraction Tutorial
CLICK LINK BELOW TO VIEW VIDEO!!!
Once the video pops-up, click the arrow to enlarge.
*Please note: the word "
TRADE
" may also be used in place of the word "borrow" or "regroup".
https://goo.gl/photos/XhjDw1rKhFCYV1EJ9
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