Counting

problem

Card Trick 2

Age

11 to 14

Challenge level

Can you explain how this card trick works?
problem

Alien Counting

Age

7 to 11

Challenge level

Investigate the different ways these aliens count in this challenge. You could start by thinking about how each of them would write our number 7.
problem

Painting Cubes

Age

11 to 14

Challenge level

Imagine you have six different colours of paint. You paint a cube using a different colour for each of the six faces. How many different cubes can be painted using the same set of six colours?
problem

Stone Age Counting

Age

5 to 7

Challenge level

What could these drawings, found in a cave in Spain, represent?
game

Incey Wincey Spider for Two

Age

5 to 7

Challenge level

Incey Wincey Spider game for an adult and child. Will Incey get to the top of the drainpipe?
problem

Unexpected Ordering

Age

5 to 7

Challenge level

Watch the video of Fran re-ordering these number cards. What do you notice? Try it for yourself. What happens?
problem

Mrs Beeswax

Age

5 to 7

Challenge level

In how many ways could Mrs Beeswax put ten coins into her three puddings so that each pudding ended up with at least two coins?
problem

Find a Path

Age

5 to 7

Challenge level

Can you find a path from a number at the top of this network to the bottom which goes through each number from 1 to 9 once and once only?
problem

Queue

Age

5 to 7

Challenge level

25 students are queuing in a straight line. How many are there between Julia and Jenny?
game

Poker Bingo

Age

5 to 11

Challenge level

A game played with a standard pack of cards.