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Cornerstone · Grades 3–5 Keystones #1 31 March 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 March 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 4⁄8

    Answer: 4⁄3
  2. 2. Algebra Two-step equations

    Solve: 2x + 12 = 34

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

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 1:2

    Answer: 12 and 24
  5. 5. Statistics Mean

    Find the mean of: 4, 7, 18, 7

    Answer: 9

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