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Cornerstone · Grades 3–5 Keystones #1 30 January 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 January 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄11 + 5⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x + 15 = 27

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

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

    Answer: 5.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 136 in the ratio 4:3:1

    Answer: 68, 51 and 17
  5. 5. Statistics Mean

    Calculate the mean of: 18, 6, 46, 28, 28, 35

    Answer: 26.8

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