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Cornerstone · Grades 3–5 Keystones #1 8 February 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 February 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 2⁄7

    Answer: 47⁄42
  2. 2. Algebra Two-step equations

    Solve: 4x - 11 = 9

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

    Calculate the hypotenuse when a = 8cm and b = 9cm. Give your answer to 2 decimal places

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

    Share 96 in the ratio 2:1

    Answer: 64 and 32
  5. 5. Statistics Mean

    Find the mean of: 2, 17, 8

    Answer: 9

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