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

Five GCSE retrieval questions · 1 September 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 3⁄6

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

    Solve: 4x - 6 = 14

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 76 in the ratio 3:1

    Answer: 57 and 19
  5. 5. Statistics Mean

    Calculate the mean of: 22, 44, 8, 37, 42, 19, 8

    Answer: 25.7

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