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Cornerstone · Grades 3–5 Keystones #1 6 December 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 December 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 7⁄11

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

    Solve: 4x + 13 = 57

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 112 in the ratio 4:3

    Answer: 64 and 48
  5. 5. Statistics Mean

    Find the mean of: 2, 17, 13, 7, 6

    Answer: 9

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