1-chloropentane Animation Play

A car park – activity Whiteboard exercise Play

A more difficult problem (1) Student activity Play

A more difficult problem (2) Student activity Play

A sequence Animation Play

A sequence – matchsticks Whiteboard exercise Play

A source of light Student activity Play

A spreadsheet Animation Play

Acidic properties Student activity Play

Activities in multiplying sums by monomials Student activity Play

Add and subtract similar terms Whiteboard exercise Play

Add and subtract similar terms Student activity Play

Add fractions Animation Play

Add fractions Student activity Play

Add fractions Whiteboard exercise Play

Add fractions with the numerator 1 Whiteboard exercise Play

Add fractions with the numerator 1 Student activity Play

Add fractions, subtract fractions Student activity Play

Add integers Whiteboard exercise Play

Add integers Student activity Play

Add or subtract a changing number Student activity Play

Add or subtract a changing number Whiteboard exercise Play

Add the numbers mentally Whiteboard exercise Play

Add the numbers mentally Student activity Play

Add the numbers using different methods Student activity Play