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Cornerstone · Grades 3–5 Keystones #1 26 April 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 April 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄6 + 4⁄8

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 7 = 43

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

    Calculate the hypotenuse when a = 6cm and b = 10cm

    Answer: 11.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 144 in the ratio 2:3:4

    Answer: 32, 48 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 39, 8, 46, 50, 34, 28

    Answer: 34.2

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