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Cornerstone · Grades 3–5 Keystones #1 26 May 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 May 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 2⁄4

    Answer: 17⁄14
  2. 2. Algebra Two-step equations

    Solve: 4x - 17 = 35

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

    Calculate the hypotenuse when a = 9cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 1:4:3

    Answer: 12, 48 and 36
  5. 5. Statistics Mean

    Find the mean of: 9, 8, 22

    Answer: 13

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