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Prerequisites

# Collecting like terms

Click the tabs for extension tasks…

- Simplify \(a-2a+3a-4a+5a-6a+…+49a-50a\)

- Consider consecutive pairs of terms, starting from the beginning.

- \(-25a\)

- Fill in the blank: \((2x+1)+(2x+1)+(2x+1)+(2x+1) \equiv\) ___\((2x+1)\)

- \(4\)

Teacher resources

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- Slides in PPTX (with click-to-reveal answers)
- Slides in PDF (one slide per page, suitable for importing into IWB software)

- Worksheet (with space for student work)
- Handout (slides with exercises only; 4 per page for reduced printing)

- Addition pyramid generator (one variable) – suitable for use on an interactive whiteboard. Answers available.
- Addition pyramid generator (two variables) – suitable for use on an interactive whiteboard. Answers available.

Links to past exam questions

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Unlimited practice questions (easy)

Unlimited practice questions (harder)

In the real world

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