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

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

  1. 1. Number Adding fractions

    Add: 2⁄4 + 2⁄5

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 2x - 19 = 9

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

    Calculate the hypotenuse when a = 11cm and b = 12cm

    Answer: 16.28cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 4:1

    Answer: 28 and 7
  5. 5. Statistics Mean

    Calculate the mean of: 44, 37, 29, 7, 28, 39

    Answer: 30.7

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