When working on calculations, pupils need to work efficiently and confidently.

This PowerPoint focuses on working efficiently.

Using standard algorithms isn’t always the most efficient way to calculate an answer.

Allowing pupils to discuss their methods reminds pupils about the most efficient ways to calculate different questions.

Although pupils don’t always need to use formal algorithms that doesn’t mean that they need to calculate everything in their heads; informal jottings and the use of a number line can be very helpful for pupils.

When working with larger numbers, it can be more efficient to use the standard algorithms.

However, whichever method pupils use, it is worth getting them used to using an estimate to check their answer against.

• 45 interactive slides each containing 4 cards that are flipped to reveal a calculation.

• Printables and answers are included to minimise preparation time.

• Each slide has accompanying notes to assist busy teachers with suggested ways to work out each calculation.