Skill Building: Beat the Clock

Back on July 17th, in the post entitled “Keeping Skills Sharp During the Summer”, I mentioned this game.  My fourth grade teacher had taught it to us to help us practice our math facts.
This is the diagram that she would put up on the board.

                                                         
Setting Up:
In the center of the circle a + or – or  * or a division sign is placed, with a number from 1-12. 
When you are adding or multiplying the numbers on the outside of the circle can stay the way they are in the diagram above.
But according to what you are subtracting or dividing your numbers would change around the circle. For example, if you are dividing by 5 then your numbers around the clock would be 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 and if you are subtracting by 5 then your numbers would be 6-17. 
Game Play:
You are required to race around the circle as fast as you can by touching the number on the outside of the circle and then announcing its missing member of the fact family.  This can be set at a specific time or you can play to beat your own best score.  For example:  You have a +5 in the center of the circle, so when I touch the #9, I would say 14, then when I touch the #5 I would say 10 and so on. 
In the classroom we did this on a chalk board and held a yard stick to point to each number.  We had to finish the circle within 1 minute.  If we finished we went onto the next number.  So if we were at +5, if I completed it then I would move on to +6 and so on.
This game really adds a fun element to a sort of flash card kind of game.  Hope you give it a try, we love this game and it really refreshes kids memories, during the summer.