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Cornerstone · Grades 3–5 Keystones #1 14 March 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 5x - 16 = 44

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 6cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 1:2

    Answer: 20 and 40
  5. 5. Statistics Mean

    Calculate the mean of: 8, 38, 16, 21, 43, 37, 18, 41

    Answer: 27.8

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