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Cornerstone · Grades 3–5 Keystones #1 27 June 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 5⁄6

    Answer: 31⁄30
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 56

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics Mean

    Calculate the mean of: 8, 13, 8, 36, 38, 9. Give your answer to 2 decimal places

    Answer: 18.67