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Cornerstone · Grades 3–5 Keystones #1 2 February 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 2 February 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 4x + 5 = 41

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio Sharing in a ratio

    Divide 112 in the ratio 4:2:1

    Answer: 64, 32 and 16
  5. 5. Statistics Mean

    Find the mean of: 8, 12, 4, 14, 17

    Answer: 11

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