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Cornerstone · Grades 3–5 Keystones #1 28 July 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 3⁄4

    Answer: 11⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x - 7 = 25

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 7cm

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics Mean

    Find the mean of: 17, 16, 15, 20

    Answer: 17

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