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Cornerstone · Grades 3–5 Keystones #1 17 November 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 1⁄3

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 2x + 8 = 14

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

    Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Share 55 in the ratio 2:3

    Answer: 22 and 33
  5. 5. Statistics Mean

    Find the mean of: 14, 18, 15, 10, 13

    Answer: 14