This collection of tasks is part of the activities for 14-16 year olds section of the Maths At Home feature. All you need to get started is a pencil and paper! The stars represent the challenge level, with three stars indicating the most challenging activities.
You may also wish to explore Just Jottings for 11-14 year olds, and Just Jottings for 16-18 year olds.
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Slick Summing
Watch the video to see how Charlie works out the sum. Can you adapt his method?
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Ben's Game
Ben, Jack and Emma passed counters to each other and ended with the same number of counters. How many did they start with?
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Two and Two
How many solutions can you find to this sum? Each of the different letters stands for a different number.
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Wipeout
Can you do a little mathematical detective work to figure out which number has been wiped out?
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Curvy areas
Have a go at creating these images based on circles. What do you notice about the areas of the different sections?
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Negatively Triangular
How many intersections do you expect from four straight lines ? Which three lines enclose a triangle with negative co-ordinates for every point ?