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Cornerstone · Grades 3–5 Keystones #1 23 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄9 + 5⁄9

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

    Solve: 3x + 11 = 47

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

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Divide 203 in the ratio 4:1:2

    Answer: 116, 29 and 58
  5. 5. Statistics Mean

    Calculate the mean of: 39, 46, 20, 45, 9, 22. Give your answer to 2 decimal places

    Answer: 30.17

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