Division of rational numbers Whiteboard exercise Play

Division with remainder – positive numbers Whiteboard exercise Play

Encoding numbers Student activity Play

Equal numbers Whiteboard exercise Play

Equal numbers – wrong steps in proof Whiteboard exercise Play

Equally accurate rounding Student activity Play

Examples of addition of like terms Animation Play

Examples of fractions with the same denominators Animation Play

Examples of subtracting fractions Animation Play

Examples of subtracting polynomials Animation Play

Explain and justify Class activity Play

Explain and justify Whiteboard presentation Play

Expressions involving division Whiteboard exercise Play

Expressions involving multiplication Whiteboard exercise Play

Expressions with common fractions and decimals Student activity Play

Expressions with common fractions and decimals Whiteboard exercise Play

Factors of numbers Whiteboard exercise Play

Facts and assumptions – prime numbers Whiteboard exercise Play

Facts and assumptions – the sum of the numbers Whiteboard exercise Play

Fermat numbers Whiteboard exercise Play

Field size and the numbers of partridges Animation Play

Find the difference Student activity Play

Finding a difference Whiteboard exercise Play

Finding numbers Animation Play

Finding the missing numbers Whiteboard exercise Play