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Cornerstone · Grades 3–5 Keystones #1 2 December 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 December 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x + 15 = 27

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 7cm

    Answer: 8.06cm
  4. 4. Ratio Sharing in a ratio

    Divide 147 in the ratio 3:1:3

    Answer: 63, 21 and 63
  5. 5. Statistics Mean

    Find the mean of: 9, 11, 2

    Answer: 7.3333333333333

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