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Cornerstone · Grades 3–5 Keystones #1 6 March 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 6 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄9 + 1⁄9

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

    Solve: 4x - 12 = 36

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 152 in the ratio 4:1:3

    Answer: 76, 19 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 10, 48, 22, 28, 39, 30, 23, 14

    Answer: 26.75

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