Being resourceful

Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?

In this 100 square, what is the sum of the numbers that are diagonally opposite each other?

On the graph there are 28 marked points. These points all mark the vertices (corners) of eight hidden squares. Can you find the eight hidden squares?

Can you make doughnuts by matching these fractions, decimals and percentages?

Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?

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?

We start with one cube and build around it. Then we build around that. How many cubes have we used?

These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?