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Cornerstone · Grades 3–5 Keystones #1 18 March 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄7 + 2⁄7

    Answer: 3⁄7
  2. 2. Algebra Two-step equations

    Solve: 8x - 16 = 40

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.69cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 1:3

    Answer: 15 and 45
  5. 5. Statistics Mean

    Find the mean of: 14, 2, 19, 5

    Answer: 10

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