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

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

  1. 1. Number Adding fractions

    Add: 1⁄6 + 1⁄4

    Answer: 5⁄12
  2. 2. Algebra Two-step equations

    Solve: 4x + 4 = 32

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

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 2:3

    Answer: 14 and 21
  5. 5. Statistics Mean

    Find the mean of: 7, 20, 4, 20, 10

    Answer: 12.2

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