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Cornerstone · Grades 3–5 Keystones #1 4 March 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 March 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 2⁄8

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 3x + 15 = 36

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

    Calculate the hypotenuse when a = 7cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio Sharing in a ratio

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 31, 32, 24, 41, 32, 45, 47, 41. Give your answer to 2 decimal places

    Answer: 36.63

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