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

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

  1. 1. Number Adding fractions

    Add: 5⁄8 + 2⁄6

    Answer: 23⁄24
  2. 2. Algebra Two-step equations

    Solve: 6x - 10 = 62

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 4cm

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Divide 132 in the ratio 4:3:4

    Answer: 48, 36 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 19, 40, 44, 33, 9, 46, 13, 46

    Answer: 31.3

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