How to solve missing number problems using bar model? Are you looking to teach your children how to solve missing number problems using bar model? Then, you are in the right place. Read through the article to understand bar modelling... This content is for Year and Year members only.login Join Us Sample Tags: Bar model, Math, Missing numbers, Number problems, Singapore Math, Year 2, Year 3 Share: About Author The Mum Educates TME provides quality and resources for kids learning. Bring learning resources to life with provided worksheets, activities, tasks and many more.