Bubble Trouble

Age 5 to 7 Challenge Level:
Can you find just the right bubbles to hold your number?
How many different arrangements of bubbles can you make with your number?
Can you find numbers which cannot be made into a group of bubbles?
Full Screen Version
If you can see this message Flash may not be working in your browser
Please see http://nrich.maths.org/techhelp/#flash to enable it.