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Cornerstone · Grades 3–5 Keystones #1 27 September 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 27 September 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x + 15 = 23

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 16.64cm
  4. 4. Ratio Sharing in a ratio

    Divide 209 in the ratio 4:3:4

    Answer: 76, 57 and 76
  5. 5. Statistics Mean

    Find the mean of: 18, 6, 14, 15, 12

    Answer: 13

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