Playing Number Grabber

Our class practiced our teen totals with partners by playing Number Grabber on the smart board. In this game, while the rest of the class closes their eyes, one student erases one number and says, "Open your eyes for a big surprise."  The class then opens their eyes and raises their hand to tell which partner or total has been erased. We did this earlier in the year with totals less than ten. Now we are practicing with teen totals.