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Cornerstone · Grades 3–5 Keystones #1 16 December 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄12 + 6⁄12

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 7x - 16 = 40

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 9.85cm
  4. 4. Ratio Sharing in a ratio

    Divide 200 in the ratio 3:3:2

    Answer: 75, 75 and 50
  5. 5. Statistics Mean

    Calculate the mean of: 24, 23, 47, 14, 32, 47, 36. Give your answer to 2 decimal places

    Answer: 31.86

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