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Cornerstone · Grades 3–5 Keystones #1 10 January 2023 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 January 2023 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄11 + 2⁄11

    Answer: 4⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x + 9 = 41

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 5cm

    Answer: 6.4cm
  4. 4. Ratio Sharing in a ratio

    Divide 174 in the ratio 1:4:1

    Answer: 29, 116 and 29
  5. 5. Statistics Mean

    Find the mean of: 12, 11, 19

    Answer: 14

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