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

Five GCSE retrieval questions · 5 February 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 3⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 2x + 9 = 25

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 1:2

    Answer: 14 and 28
  5. 5. Statistics Mean

    Find the mean of: 9, 14, 7, 4

    Answer: 8.5

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