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Cornerstone · Grades 3–5 Keystones #1 16 February 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 February 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 2⁄4

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

    Solve: 6x - 18 = 60

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 4:1

    Answer: 76 and 19
  5. 5. Statistics Mean

    Find the mean of: 14, 10, 21

    Answer: 15

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