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

Five GCSE retrieval questions · 7 October 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 2⁄4

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

    Solve: 5x + 8 = 63

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 1:4

    Answer: 19 and 76
  5. 5. Statistics Mean

    Find the mean of: 10, 7, 8

    Answer: 8.3333333333333

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