Chose from even numbers, odd numbers, primes, multiples of 3 and 7, squares, powers of 2. If you're feeling really mathematical, test your wits with the random selection.
Select a category to begin, and then shoot the numbers on the ducks to complete the game. The ducks quack when you're correct - you'll know when you're wrong!! You've got to be quick or these ducks will make you go quackers!
© David Kaplan
This xylophone applet was created by David Kaplan.
Visit David's site Mindazzle for more fun with music, maths and games.