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Cornerstone · Grades 3–5 Keystones #1 6 June 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 5⁄8

    Answer: 9⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x - 17 = 25

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 152 in the ratio 1:3:4

    Answer: 19, 57 and 76
  5. 5. Statistics Mean

    Find the mean of: 16, 11, 4, 19, 20

    Answer: 14

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