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Cornerstone · Grades 3–5 Keystones #1 6 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 6⁄7

    Answer: 58⁄35
  2. 2. Algebra Two-step equations

    Solve: 8x - 17 = 55

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics Mean

    Find the mean of: 20, 10, 2, 13, 15

    Answer: 12