3.1 Have I done the right calculation?

Once you have done a calculation, with or without the aid of a calculator, it is important that you pause for a moment to check your calculation.

You need to ask yourself some questions.

  1. Have I done the right calculation in the right order?

  2. Have I given due consideration to units of measurement?

  3. Is my answer reasonable?

  4. Did I make a rough estimate to act as a check?

Your calculation wil
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