Where have all the girls gone? big numbers, Childcare, Functional Maths, GCSE Maths, Graphs, Graphs and Charts, Health and social care, Hot Potato, Level 2, Percentages, Ratio, Uncategorized Add comments Oct 082013 Scan A shocking maths exercise looking at the changing ratio of boy to girl births in Asia. There is a worksheet version here. Related Leave a Reply Cancel replyYou must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.