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Three Squares

What is the greatest number of squares you can make by overlapping three squares?

Two Dice

Find all the numbers that can be made by adding the dots on two dice.

Biscuit Decorations

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?

Share Bears

Age 5 to 7
Challenge Level

Ten teddiesYasmin and Zach have some bears to share. Which numbers of bears can they share equally so that there are none left over?

Can they share one bear equally?  Can they share two bears equally?  Three bears?  Four bears...?

What do you notice about the numbers they can share fairly? It might help to look at a number line and mark the numbers that do share fairly onto it. Do you notice a pattern?

How about using a 100 square?

Printable NRICH Roadshow resource.