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Cornerstone · Grades 3–5 Keystones #1 16 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 1⁄4

    Answer: 9⁄20
  2. 2. Algebra Two-step equations

    Solve: 5x - 13 = 42

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.2cm
  4. 4. Ratio Sharing in a ratio

    Divide 200 in the ratio 2:2:1

    Answer: 80, 80 and 40
  5. 5. Statistics Mean

    Find the mean of: 5, 10, 16, 5

    Answer: 9

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