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Cornerstone · Grades 3–5 Keystones #1 18 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 2⁄5

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 2x + 8 = 32

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

    Calculate the hypotenuse when a = 4cm and b = 6cm

    Answer: 7.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 84 in the ratio 2:1:1

    Answer: 42, 21 and 21
  5. 5. Statistics Mean

    Find the mean of: 15, 8, 5, 9

    Answer: 9.25

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