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Cornerstone · Grades 3–5 Keystones #1 24 October 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 24 October 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄4 + 1⁄3

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 7x + 9 = 37

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 12cm

    Answer: 16.28cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics Mean

    Find the mean of: 8, 19, 19, 18, 18

    Answer: 16.4

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