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Cornerstone · Grades 3–5 Keystones #1 13 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 5⁄6

    Answer: 3⁄2
  2. 2. Algebra Two-step equations

    Solve: 2x + 7 = 13

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

    Calculate the hypotenuse when a = 4cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.56cm
  4. 4. Ratio Sharing in a ratio

    Share 21 in the ratio 2:1

    Answer: 14 and 7
  5. 5. Statistics Mean

    Find the mean of: 16, 10, 4

    Answer: 10

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