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Cornerstone · Grades 3–5 Keystones #1 17 July 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄8 + 1⁄3

    Answer: 17⁄24
  2. 2. Algebra Two-step equations

    Solve: 7x + 15 = 64

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

    Calculate the hypotenuse when a = 12cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 3:1

    Answer: 36 and 12
  5. 5. Statistics Mean

    Find the mean of: 15, 14, 4

    Answer: 11

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