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

Five GCSE retrieval questions · 7 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 4⁄5

    Answer: 17⁄15
  2. 2. Algebra Two-step equations

    Solve: 6x - 17 = 43

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 11cm

    Answer: 13.6cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics Mean

    Find the mean of: 11, 12, 9, 7, 2

    Answer: 8.2

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