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Cornerstone · Grades 3–5 Keystones #1 11 October 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 October 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄4 + 2⁄6

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x + 8 = 63

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 15cm

    Answer: 18.03cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 1:3

    Answer: 12 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 44, 22, 7, 8, 32, 14

    Answer: 21.2

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