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Cornerstone · Grades 3–5 Keystones #1 4 June 2021 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 June 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄8 + 3⁄6

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

    Solve: 7x + 12 = 89

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 11cm

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Share 96 in the ratio 2:1

    Answer: 64 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 37, 43, 13, 44, 19, 30

    Answer: 31

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