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Cornerstone · Grades 3–5 Keystones #1 12 February 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 February 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 2⁄5

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

    Solve: 7x - 19 = 30

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 44 in the ratio 3:1

    Answer: 33 and 11
  5. 5. Statistics Mean

    Find the mean of: 2, 14, 6, 9

    Answer: 7.75

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