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

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

  1. 1. Number Adding fractions

    Add: 2⁄6 + 1⁄5

    Answer: 8⁄15
  2. 2. Algebra Two-step equations

    Solve: 6x + 8 = 50

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 3:2

    Answer: 30 and 20
  5. 5. Statistics Mean

    Calculate the mean of: 8, 28, 41, 26, 27, 33, 16

    Answer: 25.6

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