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Cornerstone · Grades 3–5 Keystones #1 2 March 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 4⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 7x - 9 = 54

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 85 in the ratio 2:3

    Answer: 34 and 51
  5. 5. Statistics Mean

    Calculate the mean of: 19, 41, 13, 43, 20, 42, 35

    Answer: 30.4

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