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Cornerstone · Grades 3–5 Keystones #1 23 January 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄5 + 2⁄3

    Answer: 16⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 13 = 43

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 5.83cm
  4. 4. Ratio Sharing in a ratio

    Share 66 in the ratio 2:1

    Answer: 44 and 22
  5. 5. Statistics Mean

    Find the mean of: 10, 8, 15

    Answer: 11

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