← 3.6 Approximations and Errors

Approximating a measurement

Mathematics · Grade 9 · about 40 minutes

Estimate with what you have, measure with a proper instrument, and round to the accuracy the job needs.

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  • 9 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
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Other lessons in this sub-strand

  1. Approximating a measurement
  2. Finding the error
  3. Percentage error
  4. Errors, accuracy and the customer