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Cornerstone · Grades 3–5 Keystones #1 15 November 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 15 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 4⁄6

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

    Solve: 8x - 9 = 63

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 4:1

    Answer: 36 and 9
  5. 5. Statistics Mean

    Calculate the mean of: 45, 7, 48, 30, 31, 32. Give your answer to 2 decimal places

    Answer: 32.17

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