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Cornerstone · Grades 3–5 Keystones #1 31 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 1⁄5

    Answer: 8⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 6 = 50

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 1:4

    Answer: 19 and 76
  5. 5. Statistics Mean

    Calculate the mean of: 36, 13, 27, 21, 21, 21, 19

    Answer: 22.6

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