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Cornerstone · Grades 3–5 Keystones #1 27 January 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 January 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄8 + 2⁄4

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 7x - 7 = 42

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 1:4

    Answer: 6 and 24
  5. 5. Statistics Mean

    Find the mean of: 3, 18, 3

    Answer: 8

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