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

Five GCSE retrieval questions · 3 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄8 + 1⁄4

    Answer: 3⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x + 10 = 40

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Share 25 in the ratio 4:1

    Answer: 20 and 5
  5. 5. Statistics Mean

    Find the mean of: 4, 1, 15, 13, 2

    Answer: 7