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Cornerstone · Grades 3–5 Keystones #1 12 March 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 March 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 2⁄3

    Answer: 29⁄21
  2. 2. Algebra Two-step equations

    Solve: 4x + 8 = 32

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 12.65cm
  4. 4. Ratio Sharing in a ratio

    Divide 65 in the ratio 2:2:1

    Answer: 26, 26 and 13
  5. 5. Statistics Mean

    Find the mean of: 22, 20, 3

    Answer: 15

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