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Cornerstone · Grades 3–5 Keystones #1 23 February 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 23 February 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 4⁄8

    Answer: 5⁄4
  2. 2. Algebra Two-step equations

    Solve: 8x - 5 = 99

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

    Calculate the hypotenuse when a = 6cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 7.21cm
  4. 4. Ratio Sharing in a ratio

    Share 56 in the ratio 3:4

    Answer: 24 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 7, 46, 47, 34, 17, 19. Give your answer to 2 decimal places

    Answer: 28.33

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