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Cornerstone · Grades 3–5 Keystones #1 2 February 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 February 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 3⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 7x + 12 = 47

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

    Calculate the hypotenuse when a = 6cm and b = 9cm

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Divide 207 in the ratio 4:3:2

    Answer: 92, 69 and 46
  5. 5. Statistics Mean

    Find the mean of: 12, 11, 6, 11

    Answer: 10

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