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

Five GCSE retrieval questions · 3 November 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 5⁄8

    Answer: 23⁄24
  2. 2. Algebra Two-step equations

    Solve: 3x - 10 = 29

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio Sharing in a ratio

    Divide 180 in the ratio 1:4:1

    Answer: 30, 120 and 30
  5. 5. Statistics Mean

    Find the mean of: 18, 11, 7

    Answer: 12

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