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Cornerstone · Grades 3–5 Keystones #1 19 July 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 July 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 36 + 38

    Answer: 78
  2. 2. Algebra Two-step equations

    Solve: 7x - 17 = 60

    Answer: x = 11
  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

    Divide 85 in the ratio 1:1:3

    Answer: 17, 17 and 51
  5. 5. Statistics Mean

    Find the mean of: 11, 3, 10, 4

    Answer: 7