Substituting into the formulas Whiteboard presentation Play

Subtracting natural numbers Whiteboard exercise Play

Subtracting natural numbers using the written method Student activity Play

Subtracting negative numbers Student activity Play

Subtracting negative numbers Whiteboard exercise 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 arithmetic mean of two numbers Animation Play

The assumptions and the claim of the theorem Whiteboard exercise Play

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

The cube roots Whiteboard exercise Play

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

The equal numbers Whiteboard exercise Play

The highest common factor of numbers 33 and 44 Animation Play

The missing numbers Whiteboard exercise Play

The missing numbers Game Play

The missing numbers in the expressions Whiteboard exercise Play

The missing numbers in the rectangles Whiteboard exercise Play

The number of sequences Animation Play

The numbers and their multiples Whiteboard exercise Play

The numbers and their multiples Whiteboard exercise Play

The numbers divided by 3 and 9 Animation Play

The numbers in Pascal's Triangle Whiteboard exercise Play