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Cornerstone · Grades 3–5 Keystones #1 4 April 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 April 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 5⁄7

    Answer: 89⁄56
  2. 2. Algebra Two-step equations

    Solve: 6x - 6 = 84

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.76cm
  4. 4. Ratio Sharing in a ratio

    Divide 242 in the ratio 4:4:3

    Answer: 88, 88 and 66
  5. 5. Statistics Mean

    Find the mean of: 11, 3, 13

    Answer: 9