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Cornerstone · Grades 3–5 Keystones #1 5 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 2⁄5

    Answer: 3⁄5
  2. 2. Algebra Two-step equations

    Solve: 5x - 19 = 41

    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

    Share 105 in the ratio 3:4

    Answer: 45 and 60
  5. 5. Statistics Mean

    Find the mean of: 12, 15, 10, 19

    Answer: 14

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