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Cornerstone · Grades 3–5 Keystones #1 2 September 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 September 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 4x - 6 = 14

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 4:2:3

    Answer: 72, 36 and 54
  5. 5. Statistics Mean

    Find the mean of: 7, 9, 17, 7

    Answer: 10

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