This is a PowerPoint game that can be used year round. This game practices the skill/standard of being able to mentally find 10 more and 10 less of a number. This is great for a whole class math activity, but could also be used in small group or as individual practice.
There are 20 questions. You just click on each question to go to it. The question disappears after you've clicked on it so you know you've answered it. There is a type-in scoreboard that can be typed in during Slideshow Mode. You also have the option of EDITING the problems and answers so that you can continue to play with new problems.