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Cornerstone · Grades 3–5 Keystones #1 26 September 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 September 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 3⁄4

    Answer: 13⁄8
  2. 2. Algebra Two-step equations

    Solve: 2x - 19 = 7

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 1:2

    Answer: 16 and 32
  5. 5. Statistics Mean

    Find the mean of: 4, 12, 8

    Answer: 8

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