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

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

  1. 1. Number Adding fractions

    Add: 3⁄6 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x - 5 = 23

    Answer: x = 14
  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 100 in the ratio 2:3

    Answer: 40 and 60
  5. 5. Statistics Mean

    Find the mean of: 9, 16, 2, 5, 6

    Answer: 7.6

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