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Cornerstone · Grades 3–5 Keystones #1 6 June 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 June 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x - 9 = 9

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

    Calculate the hypotenuse when a = 4cm and b = 14cm

    Answer: 14.56cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics Mean

    Find the mean of: 8, 12, 3, 18, 6

    Answer: 9.4

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