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Cornerstone · Grades 3–5 Keystones #1 8 March 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 1⁄6

    Answer: 29⁄30
  2. 2. Algebra Two-step equations

    Solve: 4x + 8 = 44

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

    Calculate the hypotenuse when a = 6cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 66 in the ratio 3:1:2

    Answer: 33, 11 and 22
  5. 5. Statistics Mean

    Find the mean of: 13, 5, 17, 17

    Answer: 13

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