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Diving into Factors and Multiples
These tasks will help you gain more of a 'feel' for number and deepen your understanding of number properties, especially factors and multiples.
Tables Teaser
Age 5 to 7
Challenge Level 
How will you work out which numbers have been used to create this multiplication square?
Light the Lights
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?
Largest Even
LiveAge 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?
Dicey Array
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?
Light the Lights Again
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?
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More Playing with Numbers Upper Primary
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