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Cornerstone · Grades 3–5 Keystones #1 6 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 2⁄8

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

    Solve: 7x + 11 = 74

    Answer: x = 9
  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 30 in the ratio 1:4

    Answer: 6 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 33, 31, 22, 17, 22, 18, 36

    Answer: 25.6

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