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

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

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 1⁄8

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

    Solve: 2x + 5 = 19

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

    Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 4:1

    Answer: 76 and 19
  5. 5. Statistics Mean

    Calculate the mean of: 42, 38, 44, 8, 42, 6

    Answer: 30

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