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Cornerstone · Grades 3–5 Keystones #1 10 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 3⁄6

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 5x + 11 = 56

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 12cm

    Answer: 12.37cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics Mean

    Calculate the mean of: 48, 16, 8, 47, 32, 50

    Answer: 33.5

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