From Ryan Tensmeyer:
Welcome to Waldo Numbers!The game is simple. A bunch of numbers will appear on the screen. Start by finding 1, and then 2, and so on until you reach the max number.Ready for a bigger challenge? Set 'Remove Found Numbers' to 'NO' or increase the amount of numbers you are looking for.It's a great app whether you're teaching kids their numbers or looking for some brain exercise for yourself.