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

Five GCSE retrieval questions · 1 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 1⁄6

    Answer: 37⁄42
  2. 2. Algebra Two-step equations

    Solve: 5x + 8 = 53

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Divide 126 in the ratio 1:3:3

    Answer: 18, 54 and 54
  5. 5. Statistics Mean

    Find the mean of: 2, 22, 18

    Answer: 14

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