The take-away bar: go figure
TLF ID L102
This tutorial is suitable for use with a screen reader. It explains strategies for solving subtractions in your head such as 87-39. Work through sample questions and instructions explaining how to use linear partitioning techniques. Solve subtractions by breaking them up into parts that are easy to work with, work out each part and then solve the original calculation. This learning object is one in a series of five objects.