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Cornerstone · Grades 3–5 Keystones #1 3 August 2021 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 August 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄8 + 6⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 5x - 17 = 38

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 13cm

    Answer: 13.34cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics Mean

    Find the mean of: 11, 9, 15, 3, 10

    Answer: 9.6

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