The Number Jumbler
Your number is...
Treasure Hunt
Number Lines in Disguise
Remainders
Sieve of Eratosthenes
Odds, Evens and More Evens
Alison, Bernard and Charlie have been exploring sequences of odd and even numbers, which raise some intriguing questions...
Fractions Rectangle
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.
Up, down, flying around
Play this game to learn about adding and subtracting positive and negative numbers
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?
Reflecting Squarely
Shady Symmetry
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?
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.
Perimeter Expressions
More Number Pyramids
When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...