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Chapter 9 · Questions · page 43 of 68

Do exponents come before multiplication?

Short answerYes. Exponents are done before multiplication and division, unless parentheses say otherwise.

levelPre-algebra
standard6.EE.A.1
practiceOrder of operations

An exponent belongs to the number right under it. In 2 × 3², the square applies to the 3 only, so you square first and multiply after. Parentheses are the only thing that comes earlier.

How to use it

  1. Find any parentheses and work them out first.
  2. Apply each exponent to the number or group directly under it.
  3. Then multiply and divide, then add and subtract.

Example

5+2×32=5+2×9=5+18=235 + 2 \times 3^2 = 5 + 2 \times 9 = 5 + 18 = 23
(5+2)×32=7×9=63(5 + 2) \times 3^2 = 7 \times 9 = 63
2×32=182 \times 3^2 = 18

Where it goes wrong

  • Multiplying first: 2 × 3² is not 6² = 36.
  • Squaring a whole expression when only the last number is under the exponent.

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