This 5 Day Lesson Includes worksheets/games/activities on finding two addend combinations (ex: There are 7 toys, some are cars and some are blocks, how many of each could you have?) and finding the missing addend when the whole and one part are known (ex: ___ + 7 = 10).

This is a SMART Notebook file. All worksheets needed are included in Microsoft Word.

It may be helpful for some of the activities to have number cards (0-9) such as the Primary Number Cards included in the TERC Investigations program.