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Cornerstone · Grades 3–5 Keystones #1 9 June 2019 Skills week 1 of 7
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Five GCSE retrieval questions · 9 June 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 1⁄6

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

    Solve: 6x - 12 = 24

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 112 in the ratio 1:2:4

    Answer: 16, 32 and 64
  5. 5. Statistics Mean

    Find the mean of: 7, 4, 14, 3

    Answer: 7

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