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Cornerstone · Grades 3–5 Keystones #1 2 June 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 1⁄3

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

    Solve: 6x - 12 = 42

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

    Calculate the hypotenuse when a = 10cm and b = 10cm

    Answer: 14.14cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 2:3

    Answer: 20 and 30
  5. 5. Statistics Mean

    Find the mean of: 3, 20, 12, 9

    Answer: 11

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