Remember: To find all the factor pairs, it is not necessary to draw every rectangle. Eg, a 5 x 2 rectangle and a 2 x 5 rectangle are the same rectangle in a different orientation. Only one of ...

Diagrams can be drawn to illustrate this calculation. Draw a rectangle. Split the width into halves. Split the length into thirds. The rectangle is now split into 6 parts (sixths). To work out 4 ...