I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
A useful visualising exercise which offers opportunities for discussion and generalising, and which could be used for thinking about the formulae needed for generating the results on a spreadsheet.
Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?
Take three consecutive numbers and add them together. What do you notice?
What is the shape of wrapping paper that you would need to completely wrap this model?
Can you find a way of representing these arrangements of balls?
Can you visualise whether these nets fold up into 3D shapes? Watch the videos each time to see if you were correct.
In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?
Place the numbers 1, 2, 3,..., 9 one on each square of a 3 by 3 grid so that all the rows and columns add up to a prime number. How many different solutions can you find?
