This collection is one of our Primary Curriculum collections - tasks that are grouped by topic.

problem

### Two-digit targets

You have a set of the digits from 0 to 9. Can you arrange these in the five boxes to make two-digit numbers as close to the targets as possible?

problem

### Digit Addition

Try out this number trick. What happens with different starting numbers? What do you notice?

problem

### I Like ...

Mr Gilderdale is playing a game with his class. What rule might he have chosen? How would you test your idea?

problem

### Largest Even

How would you create the largest possible two-digit even number from the digit I've given you and one of your choice?

problem

### 6 Beads

If you put three beads onto a tens/ones abacus you can make the numbers 3, 30, 12 or 21. What numbers can be made with six beads?

problem

### Light the Lights

Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?

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*ou may also be interested in this collection of activities from the STEM Learning website, that complement the NRICH activities above.*