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Cornerstone · Grades 3–5 Keystones #1 8 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄10 + 2⁄10

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 3x + 9 = 24

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 4cm

    Answer: 7.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 198 in the ratio 4:4:1

    Answer: 88, 88 and 22
  5. 5. Statistics Mean

    Calculate the mean of: 39, 18, 46, 5, 20, 15, 16, 40

    Answer: 24.9

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