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Cornerstone · Grades 3–5 Keystones #1 11 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 7⁄8

    Answer: 11⁄8
  2. 2. Algebra Two-step equations

    Solve: 7x - 7 = 84

    Answer: x = 13
  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

    Share 28 in the ratio 1:3

    Answer: 7 and 21
  5. 5. Statistics Mean

    Calculate the mean of: 41, 19, 15, 13, 13, 35. Give your answer to 2 decimal places

    Answer: 22.67

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