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

Five GCSE retrieval questions · 1 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 5⁄8

    Answer: 49⁄40
  2. 2. Algebra Two-step equations

    Solve: 2x + 6 = 30

    Answer: x = 12
  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

    Divide 270 in the ratio 4:4:1

    Answer: 120, 120 and 30
  5. 5. Statistics Mean

    Find the mean of: 14, 5, 3, 10, 3

    Answer: 7

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