Before purchasing this tool, try the JERC Addition Facts Tool 5 Day Free Trial. If you like the trial version, please consider making this purchase.

The JERC Addition Facts Tool creates an infinite number of variations of addition worksheets with a few mouse clicks. It can also be used as a computer activity that gives instant feedback to students. Skills include addition facts to 10, addition facts to 20, 1-digit + 2-digit numbers with and without regrouping, 2-digit + 2-digit numbers with and without regrouping, and 3-digit + 2 or 3-digit numbers.

PC Requirements: Microsoft Excel 2004 or 2008
Mac Requirements: Microsoft Excel 2004

Important:
1) The JERC Addition Facts Tool uses macros. Click the "Enable" button if Excel warns you about the presence of macros.
2) Excel's security level needs to be set to medium or low, as macros are disabled when the security level is set to high.