Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?
Jig Shapes
Age 5 to 11 Challenge Level
Remember that this activity is designed for you to try in a group
so try to persuade some friends or family to join you!
Can you think of a good way of arranging the cards?