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

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

  1. 1. Number Adding fractions

    Add: 3⁄4 + 4⁄8

    Answer: 5⁄4
  2. 2. Algebra Two-step equations

    Solve: 3x - 18 = 21

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 5cm

    Answer: 11.18cm
  4. 4. Ratio Sharing in a ratio

    Share 24 in the ratio 3:1

    Answer: 18 and 6
  5. 5. Statistics Mean

    Find the mean of: 14, 16, 2, 8

    Answer: 10

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