Robot Monsters
Age 5 to 7
Challenge Level
Use these head, body and leg pieces to make Robot Monsters which are different heights.
Two Dice
Age 5 to 7
Challenge Level
Find all the numbers that can be made by adding the dots on two dice.
Same Length Trains
Age 5 to 7
Challenge Level
How many trains can you make which are the same length as Matt's and Katie's, using rods that are identical?
Button-up
Age 5 to 7
Challenge Level
My coat has three buttons. How many ways can you find to do up all the buttons?
Three Ball Line Up
Age 5 to 7
Challenge Level
Use the interactivity to help get a feel for this problem and to find out all the possible ways the balls could land.
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?
A City of Towers
Age 5 to 7
Challenge Level
In this town, houses are built with one room for each person. There are some families of seven people living in the town. In how many different ways can they build their houses?
Ladybirds in the Garden
Age 5 to 7
Challenge Level
In Sam and Jill's garden there are two sorts of ladybirds with 7 spots or 4 spots. What numbers of total spots can you make?
Triangle Animals
Age 5 to 7
Challenge Level
How many different ways can you find to join three equilateral triangles together? Can you convince us that you have found them all?
Inside Triangles
Age 5 to 7
Challenge Level
How many different triangles can you draw on the dotty grid which each have one dot in the middle?
Beads and Bags
Age 5 to 11
Challenge Level
How could you put these three beads into bags? How many different ways can you do it? How could you record what you've done?
Five Coins
Age 5 to 11
Challenge Level
Ben has five coins in his pocket. How much money might he have?
School Fair Necklaces
Age 5 to 11
Challenge Level
How many possible symmetrical necklaces can you find? How do you know you've found them all?
NRICH is part of the family of activities in the Millennium Mathematics Project.