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Understanding powers and indices rules

Number • Structure and calculation

Key concepts

What you'll likely be quizzed about

  • A power indicates how many times a number, known as the base, is multiplied by itself.
  • For example, in the expression 2^3, 2 is the base represented in a power of 3.
  • This means 2 is multiplied by itself 3 times, resulting in 8.
  • Indices are another term for powers, commonly used in mathematical discussions.

Flashcards

Test your knowledge with interactive flashcards

What does the expression 3^4 represent?

Click to reveal answer

The expression 3^4 represents 3 multiplied by itself 4 times, equaling 81.

Key notes

Important points to keep in mind

Powers indicate repeated multiplication.

Add indices when multiplying like bases.

Subtract indices when dividing like bases.

Any non-zero base to the power of zero is 1.

Roots can simplify complex equations.

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