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NumberPuzzle

Four Fours:Standard form

Four values each written four ways. The traps: 3.2 × 10⁴ against 3.2 × 10⁻⁴, and numbers like 32 × 10⁵ that are equal but not in standard form. Two per A4.

A free key stage 3 and GCSE number puzzle with answers, spec code N9. It goes with the lessons on standard form: large numbers and standard form: small numbers.

More in Powers, surds and standard form

Everything in Powers, surds and standard form