This tool was designed for students having difficulty understanding the steps for addition and subtraction regrouping. The ones, tens, hundreds, and thousands digits are each a different color, including when numbers are carried or borrowed. Arrows show the direction to go when regrouping. Cross out lines and commas are available on the necessary sheets and must be manually put into place.
There are ten sheets to this Excel workbook. I set it up this way in order not to always have to change ce