1. The four rules of number
3. Subtraction
Example
Find
642 – 316
907 – 259

2. Example
Calculate five hundred and eleven take away two hundred and seventy five.
Example
In a school there are 963 children. If there are 459 girls how many boys are there?

3. Example
My Great-grandfather died in 1953 aged 74. In which year was he born?
Example
The results in a recent Mathematics test are shown below
What is the difference between
David and Bilal’s score?
The highest and lowest scores?
Child
Alan
Bilal
Carol
David
Elle
Faye
Score 29 38 66 53 62 27