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Cornerstone · Grades 3–5 Keystones #1 10 July 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 July 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄8 + 6⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x + 10 = 34

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 14cm

    Answer: 14.56cm
  4. 4. Ratio Sharing in a ratio

    Divide 189 in the ratio 1:4:4

    Answer: 21, 84 and 84
  5. 5. Statistics Mean

    Find the mean of: 4, 5, 16, 7

    Answer: 8

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