![Method in multiplying madness?](/sites/default/files/styles/medium/public/thumbnails/content-id-5612-icon.png?itok=ZHpntMLH)
problem
Method in multiplying madness?
Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?
![Your number was...](/sites/default/files/styles/medium/public/thumbnails/content-id-7216-icon.png?itok=gedgqfRa)
problem
Your number was...
Think of a number and follow my instructions. Tell me your answer, and I'll tell you what you started with! Can you explain how I know?
![What numbers can we make?](/sites/default/files/styles/medium/public/thumbnails/content-id-7405-icon.png?itok=AGBx2S5H)
problem
What numbers can we make?
Imagine we have four bags containing a large number of 1s, 4s, 7s and 10s. What numbers can we make?
![Forwards Add Backwards](/sites/default/files/styles/medium/public/thumbnails/content-id-11111-icon.png?itok=qNzPZE6G)
![Frogs](/sites/default/files/styles/medium/public/thumbnails/content-00-12-game1-icon.gif?itok=HbJX89ir)
problem
Frogs
How many moves does it take to swap over some red and blue frogs? Do you have a method?
![Fence it](/sites/default/files/styles/medium/public/thumbnails/content-id-2663-icon.png?itok=2LcsRSen)
problem
Fence it
If you have only 40 metres of fencing available, what is the maximum area of land you can fence off?
![Interactive Spinners](/sites/default/files/styles/medium/public/thumbnails/content-id-6033-icon.png?itok=h8ACE9q-)
problem
Interactive Spinners
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
![Crossed Ends](/sites/default/files/styles/medium/public/thumbnails/content-id-6261-icon.png?itok=w601cT6o)
problem
Crossed Ends
Crosses can be drawn on number grids of various sizes. What do you notice when you add opposite ends?
![Keep it simple](/sites/default/files/styles/medium/public/thumbnails/keep-it-simple.gif?itok=xXs1GgR6)
![How much can we spend?](/sites/default/files/styles/medium/public/thumbnails/content-id-6650-icon.png?itok=VYEcWe-l)
problem
How much can we spend?
A country has decided to have just two different coins, 3z and 5z
coins. Which totals can be made? Is there a largest total that
cannot be made? How do you know?
![Charlie's delightful machine](/sites/default/files/styles/medium/public/thumbnails/content-id-7024-icon.png?itok=TnFInR1F)
problem
Charlie's delightful machine
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
![Fibonacci Surprises](/sites/default/files/styles/medium/public/thumbnails/content-id-11164-icon.png?itok=MkOhkYT5)
problem
Fibonacci Surprises
Play around with the Fibonacci sequence and discover some surprising results!
![Rhombus It](/sites/default/files/styles/medium/public/thumbnails/content-id-15165-icon.png?itok=1iXhLMGD)
problem
Rhombus 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 rhombus.
![Farey Sequences](/sites/default/files/styles/medium/public/thumbnails/content-02-04-six3-icon.jpg?itok=wOYGWvuN)
![Stars](/sites/default/files/styles/medium/public/thumbnails/content-id-2669-icon.png?itok=Ez9pJPne)
problem
Stars
Can you work out what step size to take to ensure you visit all the dots on the circle?
![Route to infinity](/sites/default/files/styles/medium/public/thumbnails/content-id-5469-icon.png?itok=277vYUz4)
problem
Route to infinity
Can you describe this route to infinity? Where will the arrows take you next?