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Jokes poster

Why did the inequality sign turn round?

Someone multiplied it by a negative.

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A4 portrait. It is drawn in vector form, so it also prints sharply scaled up to A3.

The poster

Cartoon maths joke poster. A smiling equals sign asks: "Why did the inequality sign turn round?" Punchline: "Someone multiplied it by a negative."
Maths joke poster: Why did the inequality sign turn round?. IGCSE Math Revision, free for classroom use.

Get it?

Get it? Multiplying or dividing both sides of an inequality by a negative number reverses the sign.

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