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Cornerstone · Grades 3–5 Keystones #1 1 February 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 February 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 2⁄5

    Answer: 51⁄40
  2. 2. Algebra Two-step equations

    Solve: 4x + 6 = 26

    Answer: x = 5
  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 70 in the ratio 3:2

    Answer: 42 and 28
  5. 5. Statistics Mean

    Find the mean of: 15, 13, 3, 16, 3

    Answer: 10

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