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Cornerstone · Grades 3–5 Keystones #1 3 January 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 January 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 3⁄6

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

    Solve: 7x - 11 = 31

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

    Calculate the hypotenuse when a = 6cm and b = 13cm

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 1:3:2

    Answer: 16, 48 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 43, 40, 44, 19, 6, 31, 5

    Answer: 26.9

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