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Cornerstone · Grades 3–5 Keystones #1 1 May 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 May 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x - 16 = 68

    Answer: x = 14
  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 75 in the ratio 4:1

    Answer: 60 and 15
  5. 5. Statistics Mean

    Find the mean of: 6, 17, 4, 1

    Answer: 7

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