You may also like

problem icon

Prompt Cards

These two group activities use mathematical reasoning - one is numerical, one geometric.

problem icon

Exploring Wild & Wonderful Number Patterns

EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.

problem icon


Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?

Dividing a Cake

Age 7 to 11 Challenge Level:

It might be easier to work from this picture of the top of the cake with all possible cuts marked:

Cake top

You will find two copies of the cake top marked like this onĀ this sheet.

What do all the numbers $0$ to $9$ add to? So what will the numbers on each of the three pieces add to?