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Cornerstone · Grades 3–5 Keystones #1 2 May 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 May 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 4⁄5

    Answer: 49⁄30
  2. 2. Algebra Two-step equations

    Solve: 2x - 12 = 4

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 4cm

    Answer: 12.65cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 2:1

    Answer: 32 and 16
  5. 5. Statistics Mean

    Calculate the mean of: 21, 40, 16, 29, 32, 32, 6

    Answer: 25.1

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