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Cornerstone · Grades 3–5 Keystones #1 16 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄10 + 5⁄10

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

    Solve: 8x - 15 = 25

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 11cm

    Answer: 13.6cm
  4. 4. Ratio Sharing in a ratio

    Share 91 in the ratio 3:4

    Answer: 39 and 52
  5. 5. Statistics Mean

    Find the mean of: 2, 19, 15, 9

    Answer: 11.25

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