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Cornerstone · Grades 3–5 Keystones #1 1 April 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 April 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 6⁄8

    Answer: 19⁄20
  2. 2. Algebra Two-step equations

    Solve: 5x + 4 = 19

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

    Calculate the hypotenuse when a = 8cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 184 in the ratio 4:1:3

    Answer: 92, 23 and 69
  5. 5. Statistics Mean

    Find the mean of: 10, 19, 7, 8, 6

    Answer: 10

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