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

Five GCSE retrieval questions · 1 July 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 1⁄5

    Answer: 3⁄5
  2. 2. Algebra Two-step equations

    Solve: 3x + 11 = 26

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 2:3:4

    Answer: 36, 54 and 72
  5. 5. Statistics Mean

    Calculate the mean of: 11, 13, 41, 13, 12, 5. Give your answer to 2 decimal places

    Answer: 15.83

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