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

Five GCSE retrieval questions · 1 February 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 1⁄3

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

    Solve: 3x + 8 = 44

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 6cm

    Answer: 11.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 152 in the ratio 2:3:3

    Answer: 38, 57 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 48, 26, 46, 16, 23, 17, 18

    Answer: 27.7

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