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Cornerstone · Grades 3–5 Keystones #1 21 April 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 21 April 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 4⁄6

    Answer: 17⁄12
  2. 2. Algebra Two-step equations

    Solve: 6x + 9 = 33

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 9cm

    Answer: 12.04cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 4:3

    Answer: 20 and 15
  5. 5. Statistics Mean

    Find the mean of: 15, 20, 10

    Answer: 15

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