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Cornerstone · Grades 3–5 Keystones #1 24 February 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 24 February 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 6⁄8

    Answer: 41⁄28
  2. 2. Algebra Two-step equations

    Solve: 7x - 10 = 46

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 1:2

    Answer: 12 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 39, 11, 16, 37, 39, 29, 40, 26. Give your answer to 2 decimal places

    Answer: 29.63

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