More Less is More
Factors and Multiples Game
A game in which players take it in turns to choose a number. Can you block your opponent?
The Remainders Game
Play this game and see if you can figure out the computer's chosen number.
Consecutive Numbers
Dozens
Nice or Nasty
Number Lines in Disguise
Remainders
Train Spotters' Paradise
Odds, Evens and More Evens
Alison, Bernard and Charlie have been exploring sequences of odd and even numbers, which raise some intriguing questions...
Magic Letters
Strange Bank Account
Imagine a very strange bank account where you are only allowed to do two things...
Beach Huts
Parallelogram It
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.
Dicey Operations
Who said that adding, subtracting, multiplying and dividing couldn't be fun?
Have you got it?
Summing Consecutive Numbers
15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?
Picturing Square Numbers
Square numbers can be represented as the sum of consecutive odd numbers. What is the sum of 1 + 3 + ..... + 149 + 151 + 153?
Number Pyramids
Try entering different sets of numbers in the number pyramids. How does the total at the top change?
Square It
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
Mirror, mirror...
More Number Pyramids
When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...
Shear Magic
...on the wall
Searching for mean(ing)
Litov's Mean Value Theorem