Counting

Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?

Can you work out how to win this game of Nim? Does it matter if you go first or second?

Can you complete this jigsaw of the 100 square?

In this problem, we're investigating the number of steps we would climb up or down to get out of or into the swimming pool. How could you number the steps below the water?

"Ip dip sky blue! Who's 'it'? It's you!" Where would you position yourself so that you are 'it' if there are two players? Three players ...?

Sweets are given out to party-goers in a particular way. Investigate the total number of sweets received by people sitting in different positions.

Dotty Six is a simple dice game that you can adapt in many ways.

An activity centred around observations of dots and how we visualise number arrangement patterns.

This problem challenges you to find out how many odd numbers there are between pairs of numbers. Can you find a pair of numbers that has four odds between them?

Which is quicker, counting up to 30 in ones or counting up to 300 in tens? Why?