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Cornerstone · Grades 3–5 Keystones #1 14 November 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 November 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 2⁄4

    Answer: 5⁄4
  2. 2. Algebra Two-step equations

    Solve: 5x + 6 = 61

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

    Calculate the hypotenuse when a = 8cm and b = 10cm

    Answer: 12.81cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 4:1

    Answer: 56 and 14
  5. 5. Statistics Mean

    Calculate the mean of: 18, 7, 5, 19, 26, 18

    Answer: 15.5

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