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Cornerstone · Grades 3–5 Keystones #1 5 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 2⁄12

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 6 = 30

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 8.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 132 in the ratio 3:4:4

    Answer: 36, 48 and 48
  5. 5. Statistics Mean

    Find the mean of: 19, 11, 17, 13

    Answer: 15