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Cornerstone · Grades 3–5 Keystones #1 9 October 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 October 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄9 + 4⁄9

    Answer: 7⁄9
  2. 2. Algebra Two-step equations

    Solve: 3x - 7 = 32

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 6cm

    Answer: 12.53cm
  4. 4. Ratio Sharing in a ratio

    Share 65 in the ratio 2:3

    Answer: 26 and 39
  5. 5. Statistics Mean

    Find the mean of: 9, 4, 2

    Answer: 5

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