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

Five GCSE retrieval questions · 3 January 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 5⁄7

    Answer: 41⁄28
  2. 2. Algebra Two-step equations

    Solve: 3x - 18 = 0

    Answer: x = 6
  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 84 in the ratio 4:3

    Answer: 48 and 36
  5. 5. Statistics Mean

    Find the mean of: 14, 8, 5

    Answer: 9

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