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Cornerstone · Grades 3–5 Keystones #1 26 June 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 June 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 5⁄6

    Answer: 41⁄24
  2. 2. Algebra Two-step equations

    Solve: 5x - 15 = 15

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 13cm

    Answer: 13.6cm
  4. 4. Ratio Sharing in a ratio

    Share 56 in the ratio 3:1

    Answer: 42 and 14
  5. 5. Statistics Mean

    Calculate the mean of: 5, 5, 16, 6, 21, 40

    Answer: 15.5

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