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

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

  1. 1. Number Adding fractions

    Add: 1⁄5 + 1⁄7

    Answer: 12⁄35
  2. 2. Algebra Two-step equations

    Solve: 2x + 6 = 22

    Answer: x = 8
  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 51 in the ratio 2:1

    Answer: 34 and 17
  5. 5. Statistics Mean

    Find the mean of: 17, 7, 4

    Answer: 9.3333333333333

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