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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Diving into Factors and Multiples

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Tables Teaser

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Light the Lights

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Largest Even

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Dicey Array

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Light the Lights Again

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These tasks will help you gain more of a 'feel' for number and deepen your understanding of number properties, especially factors and multiples.

Age 5 to 7

Challenge Level

How will you work out which numbers have been used to create this multiplication square?

Age 5 to 7

Challenge Level

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

Age 5 to 11

Challenge Level

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

Age 5 to 11

Challenge Level

Watch the video of this game being played. Can you work out the rules? Which dice totals are good to get, and why?

Age 7 to 11

Challenge Level

Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you find the smallest number that lights up all four lights?