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Cornerstone · Grades 3–5 Keystones #1 11 December 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 December 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 3⁄8

    Answer: 9⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x - 6 = 46

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics Mean

    Find the mean of: 12, 17, 14, 6

    Answer: 12.25

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