A graph Whiteboard exercise Play

A more difficult problem (1) Student activity Play

A more difficult problem (2) Student activity Play

Add and subtract similar terms Student activity Play

Add and subtract similar terms Whiteboard exercise Play

Add fractions, subtract fractions Student activity Play

Adding a negative number Whiteboard exercise Play

Adding and subtracting algebraic fractions Student activity Play

Adding and subtracting arbitrary decimals Whiteboard exercise Play

Adding and subtracting arbitrary decimals Student activity Play

Adding and subtracting fractions Whiteboard presentation Play

Adding and subtracting fractions Class activity Play

Adding and subtracting fractions – a practical problem Whiteboard exercise Play

Adding and subtracting fractions – a practical problem Whiteboard exercise Play

Adding and subtracting fractions – practical problems Student activity Play

Adding and subtracting negative numbers Whiteboard exercise Play

Adding and subtracting negative numbers – the water level Whiteboard exercise Play

Adding and subtracting numbers in standard index form Student activity Play

Adding and subtracting numbers in standard index form Whiteboard exercise Play

Adding and subtracting positive decimals Whiteboard exercise Play

Adding and subtracting positive decimals Student activity Play

Adding common fractions and decimals Student activity Play

Adding decimals Animation Play

Adding decimals using the written method Student activity Play

Adding decimals using the written method Whiteboard exercise Play