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Cornerstone · Grades 3–5 Keystones #1 25 May 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 25 May 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄12 + 7⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x - 19 = 26

    Answer: x = 9
  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

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 6, 31, 22, 38, 20, 16. Give your answer to 2 decimal places

    Answer: 22.17

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