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Cornerstone · Grades 3–5 Keystones #1 8 August 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 August 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 8 = 32

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Divide 152 in the ratio 1:3:4

    Answer: 19, 57 and 76
  5. 5. Statistics Mean

    Find the mean of: 4, 8, 13, 7

    Answer: 8

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