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Cornerstone · Grades 3–5 Keystones #1 9 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 7⁄8

    Answer: 41⁄24
  2. 2. Algebra Two-step equations

    Solve: 8x - 14 = 66

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 4:1

    Answer: 64 and 16
  5. 5. Statistics Mean

    Find the mean of: 5, 8, 7, 12

    Answer: 8

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