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

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

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 1⁄5

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

    Solve: 6x + 6 = 24

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

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio Sharing in a ratio

    Divide 100 in the ratio 2:2:1

    Answer: 40, 40 and 20
  5. 5. Statistics Mean

    Calculate the mean of: 35, 41, 43, 36, 25, 29, 7, 16

    Answer: 29

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