E2-E3 How to check your answers with reverse calculations

A good way for learners to understand the importance of using reverse calculations to check an answer to a previous question.  These check questions are appearing more and more in functional skills exams. I hope you find it as useful as  I and my learners do.

Editor's note

Carefully differentiated practice in this important skill. All four operations (+, -, x, ÷) are covered. A set of 18 practical problems. An important and useful resource: so many learners lose marks by omitting checks to their work. With curriculum mapping and suggested marks. No answer sheet.  An E3-L1 version is also available.