Two-digit Targets
Age 5 to 7
Challenge Level
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?
I Like ...
Age 5 to 7
Challenge Level
Mr Gilderdale is playing a game with his class. What rule might he have chosen? How would you test your idea?
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?
Snail One Hundred
Age 5 to 7
Challenge Level
In this game, you throw a dice and move counters along the snail's body and in a spiral around the snail's shell. It is about understanding tens and ones.
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?
6 Beads
Age 5 to 7
Challenge Level
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?
Digit Addition
Age 5 to 11
Challenge Level
Try out this number trick. What happens with different starting numbers? What do you notice?
You may also be interested in this collection of activities from the STEM Learning website, that complement the NRICH activities above.
NRICH is part of the family of activities in the Millennium Mathematics Project.