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Cornerstone · Grades 3–5 Keystones #1 15 September 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 September 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 4x + 10 = 50

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 1:2

    Answer: 16 and 32
  5. 5. Statistics Mean

    Find the mean of: 15, 4, 7, 2

    Answer: 7

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