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Cornerstone · Grades 3–5 Keystones #1 2 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 3⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 4x - 17 = 15

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

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

    Answer: 7.07cm
  4. 4. Ratio Sharing in a ratio

    Divide 116 in the ratio 1:2:1

    Answer: 29, 58 and 29
  5. 5. Statistics Mean

    Calculate the mean of: 50, 44, 8, 17, 8, 8, 15. Give your answer to 2 decimal places

    Answer: 21.43

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