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Cornerstone · Grades 3–5 Keystones #1 4 August 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 August 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄9 + 2⁄9

    Answer: 5⁄9
  2. 2. Algebra Two-step equations

    Solve: 8x - 7 = 65

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

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 232 in the ratio 3:1:4

    Answer: 87, 29 and 116
  5. 5. Statistics Mean

    Find the mean of: 8, 4, 1, 15

    Answer: 7

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