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

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

  1. 1. Number Adding fractions

    Calculate: 3⁄10 + 3⁄10

    Answer: 3⁄5
  2. 2. Algebra Two-step equations

    Solve: 2x + 15 = 25

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

    Calculate the hypotenuse when a = 7cm and b = 14cm

    Answer: 15.65cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 4:3

    Answer: 40 and 30
  5. 5. Statistics Mean

    Find the mean of: 7, 17, 9

    Answer: 11

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