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Cornerstone · Grades 3–5 Keystones #1 16 April 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 April 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄7 + 5⁄6

    Answer: 47⁄42
  2. 2. Algebra Two-step equations

    Solve: 8x - 18 = 62

    Answer: x = 10
  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 119 in the ratio 3:4

    Answer: 51 and 68
  5. 5. Statistics Mean

    Find the mean of: 7, 7, 13

    Answer: 9

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