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Cornerstone · Grades 3–5 Keystones #1 8 June 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 3⁄4

    Answer: 31⁄20
  2. 2. Algebra Two-step equations

    Solve: 2x + 9 = 15

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

    Calculate the hypotenuse when a = 10cm and b = 12cm

    Answer: 15.62cm
  4. 4. Ratio Sharing in a ratio

    Divide 119 in the ratio 1:2:4

    Answer: 17, 34 and 68
  5. 5. Statistics Mean

    Find the mean of: 10, 17, 12, 19, 11

    Answer: 13.8

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