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Cornerstone · Grades 3–5 Keystones #1 20 June 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 June 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

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

    Solve: 4x + 13 = 49

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

    Calculate the hypotenuse when a = 7cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 198 in the ratio 4:2:3

    Answer: 88, 44 and 66
  5. 5. Statistics Mean

    Find the mean of: 6, 8, 15, 15

    Answer: 11

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