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Cornerstone · Grades 3–5 Keystones #1 18 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 3⁄4

    Answer: 13⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x - 8 = 28

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.26cm
  4. 4. Ratio Sharing in a ratio

    Divide 44 in the ratio 1:1:2

    Answer: 11, 11 and 22
  5. 5. Statistics Mean

    Calculate the mean of: 18, 30, 5, 23, 41, 8, 42. Give your answer to 2 decimal places

    Answer: 23.86

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