Square roots of real numbers Animation Play

Squares and cubes Student activity Play

Squares and square roots, cubes and cube roots Class activity Play

Squares and square roots, cubes and cube roots Whiteboard presentation Play

Squares of numbers Whiteboard exercise Play

Squares of numbers Animation Play

Squaring large numbers Animation Play

Substituting into a formula connected with numbers Whiteboard exercise Play

Substituting into formulas connected with numbers Student activity Play

Substituting into the formulas Whiteboard presentation Play

Substituting into the formulas Class activity Play

Subtracting natural numbers Whiteboard exercise Play

Subtracting natural numbers using the written method Student activity Play

Subtracting negative numbers Whiteboard exercise Play

Subtracting negative numbers Student activity Play

Subtracting numbers in standard index form Animation Play

Subtracting using the written method Animation Play

Summing natural numbers Animation Play

Surds Class activity Play

The area of a triangle Animation Play

The arithmetic mean of two numbers Animation Play

The cost of a 3-day mountain trip Whiteboard exercise Play

The distribution of the rational numbers over the number line Animation Play

The equal expressions Whiteboard exercise Play

The equal numbers Whiteboard exercise Play