Number Bases

We count in base ten because most of us have ten fingers. But what if we only had seven or eight? Here's a chance for you to explore the properties of base 10 as well as some less familiar number bases.

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Measuring with Rods

How many different lengths is it possible to measure with a set of three rods? Explore this problem, and make some discoveries about number bases.

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Always a Multiple?

Think of a two digit number, reverse the digits, and add the numbers together. Something special happens... Watch the videos and adapt the method to explain a variety of number tricks.

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Weights

Imagine you had a set of positive and negative "weights", which can be combined to make different totals. Which totals can you make?

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Factorising with Multilink

Watch the video to see how Charlie and Becky make rectangles with squares, sticks and units. Then have a go at making some rectangles of your own...

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