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Cornerstone · Grades 3–5 Keystones #1 26 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 2⁄4

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 3x + 15 = 36

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

    Calculate the hypotenuse when a = 10cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Share 51 in the ratio 1:2

    Answer: 17 and 34
  5. 5. Statistics Mean

    Calculate the mean of: 36, 34, 44, 17, 32, 32, 43

    Answer: 34

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