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Cornerstone · Grades 3–5 Keystones #1 18 January 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄10 + 1⁄10

    Answer: 3⁄10
  2. 2. Algebra Two-step equations

    Solve: 7x + 7 = 91

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 4:1

    Answer: 48 and 12
  5. 5. Statistics Mean

    Find the mean of: 13, 18, 11

    Answer: 14

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