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Cornerstone · Grades 3–5 Keystones #1 23 June 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 3⁄6

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

    Solve: 2x + 3 = 17

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

    Calculate the hypotenuse when a = 9cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 1:3

    Answer: 15 and 45
  5. 5. Statistics Mean

    Calculate the mean of: 34, 13, 32, 24, 37, 47, 34, 28. Give your answer to 2 decimal places

    Answer: 31.13

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