Explaining, convincing and proving
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problemMatching triangles
Can you sort these triangles into three different families and explain how you did it?
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problemNicely similar
If the hypotenuse (base) length is 100cm and if an extra line splits the base into 36cm and 64cm parts, what were the side lengths for the original right-angled triangle?
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problemRoute product
Find the product of the numbers on the routes from A to B. Which route has the smallest product? Which the largest?
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problemWhere is the dot?
A dot starts at the point (1,0) and turns anticlockwise. Can you estimate the height of the dot after it has turned through 45 degrees? Can you calculate its height?
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problemGrowing garlic
Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?
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problemTriangle numbers
Take a look at the multiplication square. The first eleven triangle numbers have been identified. Can you see a pattern? Does the pattern continue?
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problemSo many sums
In this addition each letter stands for a different digit, with S standing for 3. What is the value of YxO?