
Add to BookmarksCircles 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

Add to BookmarksCircles 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