Computation

• What does the position of a digit in a decimal represent?

  It represents the value of that digit
• How should fractions be expressed?

  In simplest form
• What is a ratio?

  A way to express fractions
• What is the reduced form of the ratio 8:2?

  4:1
• What is a percentage?

  Fractions out of 100
• How do you find the arithmetic mean?

  Add all scores and divide by number of scores
• What is standard form?

  A shorthand to represent large or small numbers
• What does the standard form 3.23 x 10⁶ represent?

  3,230,000
• What does the standard form 3.23 x 10⁻⁵ represent?

  0.0000323
• What are significant figures?

  Digits that carry meaning contributing to precision
• How would you express 32,462 with two significant figures?

  32,000
• How would you express 0.003256 with two significant figures?

  0.0033
• What does it mean to estimate results?

  A rough calculation
• What is the number given for estimation in the study material?

  135