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Cornerstone · Grades 3–5 Keystones #1 4 January 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 January 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 2⁄3

    Answer: 17⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x - 5 = 65

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 13.93cm
  4. 4. Ratio Sharing in a ratio

    Divide 232 in the ratio 4:1:3

    Answer: 116, 29 and 87
  5. 5. Statistics Mean

    Find the mean of: 4, 5, 6

    Answer: 5

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