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Cornerstone · Grades 3–5 Keystones #1 28 February 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 February 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x - 8 = 34

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 96 in the ratio 2:1

    Answer: 64 and 32
  5. 5. Statistics Mean

    Find the mean of: 16, 14, 11, 16, 7

    Answer: 12.8

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