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Cornerstone · Grades 3–5 Keystones #1 21 June 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 21 June 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 1⁄5

    Answer: 11⁄30
  2. 2. Algebra Two-step equations

    Solve: 3x - 19 = 2

    Answer: x = 7
  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 50 in the ratio 1:4

    Answer: 10 and 40
  5. 5. Statistics Mean

    Find the mean of: 12, 4, 2, 17

    Answer: 8.75

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