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Cornerstone · Grades 3–5 Keystones #1 20 January 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 January 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 2⁄4

    Answer: 13⁄10
  2. 2. Algebra Two-step equations

    Solve: 7x - 12 = 37

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 14cm

    Answer: 17.2cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics Mean

    Find the mean of: 14, 6, 10

    Answer: 10

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