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Cornerstone · Grades 3–5 Keystones #1 2 March 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 4⁄6

    Answer: 29⁄21
  2. 2. Algebra Two-step equations

    Solve: 7x - 19 = 65

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Share 140 in the ratio 3:4

    Answer: 60 and 80
  5. 5. Statistics Mean

    Find the mean of: 2, 8, 11

    Answer: 7