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Cornerstone · Grades 3–5 Keystones #1 2 January 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 January 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 3⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 2x + 6 = 16

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

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

    Answer: 14.14cm
  4. 4. Ratio Sharing in a ratio

    Share 85 in the ratio 2:3

    Answer: 34 and 51
  5. 5. Statistics Mean

    Calculate the mean of: 35, 24, 17, 49, 14, 16

    Answer: 25.8

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