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Cornerstone · Grades 3–5 Keystones #1 18 April 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 April 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 5⁄9

    Answer: 7⁄9
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 32

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

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 85 in the ratio 1:4

    Answer: 17 and 68
  5. 5. Statistics Mean

    Calculate the mean of: 36, 14, 6, 44, 35, 40

    Answer: 29.2

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