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

Five GCSE retrieval questions · 7 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 7x + 7 = 63

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Divide 150 in the ratio 3:4:3

    Answer: 45, 60 and 45
  5. 5. Statistics Mean

    Calculate the mean of: 9, 40, 20, 41, 32, 48, 49. Give your answer to 2 decimal places

    Answer: 34.14

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