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Cornerstone · Grades 3–5 Keystones #1 24 May 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 24 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 4⁄7

    Answer: 48⁄35
  2. 2. Algebra Two-step equations

    Solve: 7x + 15 = 64

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 6cm

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Share 55 in the ratio 1:4

    Answer: 11 and 44
  5. 5. Statistics Mean

    Calculate the mean of: 18, 37, 40, 49, 36, 24, 25, 14

    Answer: 30.4

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