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Cornerstone · Grades 3–5 Keystones #1 27 July 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 7⁄8

    Answer: 11⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x - 6 = 14

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 14cm

    Answer: 16.12cm
  4. 4. Ratio Sharing in a ratio

    Share 120 in the ratio 2:1

    Answer: 80 and 40
  5. 5. Statistics Mean

    Find the mean of: 10, 16, 7, 17

    Answer: 12.5

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