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Circles adding to 21 – NLVM http://www.mathszone.co.uk/images/thumbimg-114c.jpg Make the intersecting circles add to 21. Numbers in intersections are whole numbers, less than 21
Circles adding to 21 – NLVM http://www.mathszone.co.uk/images/thumbimg-114c.jpg Make the intersecting circles add to 21. Numbers in intersections are whole numbers, less than 21