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Cornerstone · Grades 3–5 Keystones #1 11 November 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 6x - 8 = 16

    Answer: x = 4
  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 90 in the ratio 2:1:3

    Answer: 30, 15 and 45
  5. 5. Statistics Mean

    Find the mean of: 10, 7, 19, 12

    Answer: 12