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Class 6–9

Powers and exponents

Understand repeated multiplication.

Understand the idea

A positive integer exponent tells you how many copies of the base to multiply. It is not an instruction to multiply the base by the exponent.

See a worked example

3^4 = 3 × 3 × 3 × 3 = 81.

A useful check

3^4 is 81, not 3 × 4 = 12.

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