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

Five GCSE retrieval questions · 1 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 1⁄3

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

    Solve: 4x - 14 = 22

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 12cm

    Answer: 15.62cm
  4. 4. Ratio Sharing in a ratio

    Share 72 in the ratio 2:1

    Answer: 48 and 24
  5. 5. Statistics Mean

    Find the mean of: 11, 4, 13

    Answer: 9.3333333333333

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