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Cornerstone · Grades 3–5 Keystones #1 29 December 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 29 December 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 1⁄3

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 4 = 70

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.3cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 2:3

    Answer: 38 and 57
  5. 5. Statistics Mean

    Find the mean of: 14, 8, 8, 2

    Answer: 8

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