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Cornerstone · Grades 3–5 Keystones #1 16 August 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 August 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 3⁄8

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

    Solve: 3x - 16 = 2

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

    Calculate the hypotenuse when a = 10cm and b = 15cm

    Answer: 18.03cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 2:3

    Answer: 20 and 30
  5. 5. Statistics Mean

    Find the mean of: 17, 3, 16

    Answer: 12

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