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Cornerstone · Grades 3–5 Keystones #1 3 June 2010 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 June 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 9⁄12 + 1⁄12

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

    Solve: 8x - 19 = 101

    Answer: x = 15
  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 98 in the ratio 3:4

    Answer: 42 and 56
  5. 5. Statistics Mean

    Find the mean of: 7, 8, 7, 7, 6

    Answer: 7

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