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Cornerstone · Grades 3–5 Keystones #1 10 June 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 June 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 2x - 18 = 4

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 7cm

    Answer: 8.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 319 in the ratio 4:3:4

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

    Find the mean of: 18, 8, 9, 16

    Answer: 12.75

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