Chapter 4 - Percentages

Page 17     Ex 4.09 updated to reflect new 15% GST rate (pdf)


Chapter 7 - Formulas and substitution

Page 30     The four colour map theorem (1)
Page 30     The four colour map theorem (2)


Chapter 14 - The metric system, scales and tables

Page 60    Friday 13th in history
Page 60    Friday 13th - occurences



Chapter 19 - Angles 2 - Polygons

Page 81    Truncated icosahedron

Chapter 20 - Tesselation

Page 86    Pentominoes


Chapter 21 - Three dimensions

Page 87    Slicing a cube (1)
Page 87    Slicing a cube (2)


Chapter 28 - Transformations 2 - Enlargement

Page 120   Word-processing fonts investigation.doc