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Cornerstone · Grades 3–5 Keystones #1 15 May 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 2⁄6

    Answer: 22⁄21
  2. 2. Algebra Two-step equations

    Solve: 7x + 15 = 64

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.65cm
  4. 4. Ratio Sharing in a ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 7, 7, 22, 27, 39, 45

    Answer: 24.5

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