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Cornerstone · Grades 3–5 Keystones #1 6 July 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 July 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 1⁄8

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 2x + 10 = 34

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 90 in the ratio 2:1

    Answer: 60 and 30
  5. 5. Statistics Mean

    Find the mean of: 13, 3, 15, 2, 19

    Answer: 10.4

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