Before students learn the standard algorithm for addition and subtraction, they need a thorough understanding of what regrouping means. This resource is designed to help build that knowledge and move students toward using the traditional method.
Two "how-to" mini books walk students through example problems. Each step is clearly explained in both numbers and words.
Starting with a standard (vertically stacked) problem, the books show how to break the number into expanded form and regroup from one column to the next in order to solve. Students will see that this is simply moving a ten or a hundred into another position.
Using this method gives meaning to the words "borrow" or "carry" that many students have been taught by parents.
The mini books (one for addition and one for subtraction) can be used as stand-alone booklet or glued into an interactive notebook as an accordion book.
Two worksheets with answer keys are also included. These let students practice the strategy shown in the mini books.
✓ Addition mini book (8 pages)
✓ Subtraction mini book (11 pages)
✓ Addition worksheet
✓ Subtraction worksheet
✓ Answer keys