100 Hunt(Ages 5 and up)
Find a number on a number square or work out 9, 10, 11 and 20 more/less.Try the Find Any Number level first. Look at the target number and find it as quickly as you can.
There's a timer to show you how many seconds you took, (after 99 seconds it says 'Ex').
Once you've mastered the patterns of the number square try adding 10 or 20.
The two player game is great for a challenge with a friend.
This game gives you a number square beyond 100 as children find counting past 100 tricky.