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Cornerstone · Grades 3–5 Keystones #1 22 June 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 June 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 4⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x - 14 = 22

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Divide 176 in the ratio 1:3:4

    Answer: 22, 66 and 88
  5. 5. Statistics Mean

    Calculate the mean of: 38, 30, 50, 12, 28, 25, 18, 42. Give your answer to 2 decimal places

    Answer: 30.38

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