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Cornerstone · Grades 3–5 Keystones #1 13 October 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 October 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 4⁄6

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

    Solve: 4x - 16 = 8

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

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

    Answer: 7.07cm
  4. 4. Ratio Sharing in a ratio

    Share 28 in the ratio 3:1

    Answer: 21 and 7
  5. 5. Statistics Mean

    Find the mean of: 9, 4, 12

    Answer: 8.3333333333333

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