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

Five GCSE retrieval questions · 5 September 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 2⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 7x - 11 = 73

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

    Calculate the hypotenuse when a = 8cm and b = 6cm

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

    Divide 140 in the ratio 2:2:3

    Answer: 40, 40 and 60
  5. 5. Statistics Mean

    Find the mean of: 2, 8, 15

    Answer: 8.3333333333333

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