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Cornerstone · Grades 3–5 Keystones #1 18 August 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 August 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 4⁄6

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 6x - 10 = 32

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

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

    Answer: 8.49cm
  4. 4. Ratio Sharing in a ratio

    Share 32 in the ratio 1:3

    Answer: 8 and 24
  5. 5. Statistics Mean

    Find the mean of: 1, 10, 19, 8, 17

    Answer: 11

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