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Cornerstone · Grades 3–5 Keystones #1 30 October 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 October 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 5x - 8 = 62

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Share 32 in the ratio 3:1

    Answer: 24 and 8
  5. 5. Statistics Mean

    Calculate the mean of: 40, 38, 31, 44, 33, 28

    Answer: 35.7

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