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

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

  1. 1. Number Adding fractions

    Calculate: 1⁄12 + 1⁄12

    Answer: 1⁄6
  2. 2. Algebra Two-step equations

    Solve: 7x - 8 = 76

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

    Calculate the hypotenuse when a = 7cm and b = 8cm

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Divide 80 in the ratio 1:2:1

    Answer: 20, 40 and 20
  5. 5. Statistics Mean

    Find the mean of: 12, 19, 17

    Answer: 16

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