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Cornerstone · Grades 3–5 Keystones #1 19 August 2021 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 August 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 8x - 14 = 98

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 5cm

    Answer: 10.3cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 4:3

    Answer: 40 and 30
  5. 5. Statistics Mean

    Find the mean of: 6, 19, 20, 16

    Answer: 15.25

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