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Cornerstone · Grades 3–5 Keystones #1 9 March 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 March 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 2⁄3

    Answer: 22⁄15
  2. 2. Algebra Two-step equations

    Solve: 7x - 10 = 18

    Answer: x = 4
  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 96 in the ratio 2:1

    Answer: 64 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 19, 32, 41, 27, 33, 16, 37

    Answer: 29.3

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