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Cornerstone · Grades 3–5 Keystones #1 30 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄10 + 2⁄10

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 6x - 16 = 74

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Share 48 in the ratio 3:1

    Answer: 36 and 12
  5. 5. Statistics Mean

    Calculate the mean of: 36, 8, 49, 18, 47, 32, 13

    Answer: 29

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