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Cornerstone · Grades 3–5 Keystones #1 13 February 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 February 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄12 + 4⁄12

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 6x + 11 = 35

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

    Calculate the hypotenuse when a = 5cm and b = 4cm

    Answer: 6.4cm
  4. 4. Ratio Sharing in a ratio

    Share 108 in the ratio 2:1

    Answer: 72 and 36
  5. 5. Statistics Mean

    Find the mean of: 3, 15, 17, 3

    Answer: 9.5

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