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Secondary Students' Solutions

Take a look at these recently solved problems.

Square Surprise
problem

Square Surprise

Age
5 to 11
Challenge level
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Why do you think that the red player chose that particular dot in this game of Seeing Squares?
Consecutive Numbers
problem
Favourite

Consecutive Numbers

Age
7 to 14
Challenge level
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An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Subtraction Surprise
problem
Favourite

Subtraction Surprise

Age
7 to 14
Challenge level
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Try out some calculations. Are you surprised by the results?
Pouring Problem
problem
Favourite

Pouring Problem

Age
7 to 11
Challenge level
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What do you think is going to happen in this video clip? Are you surprised?