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.

Largest Even 

Age 5 to 7
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?

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?

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?

Dozens 

Age 7 to 14
Challenge Level
Can you select the missing digit(s) to find the largest multiple?