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Cornerstone · Grades 3–5 Keystones #1 6 February 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 February 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 4⁄5

    Answer: 13⁄10
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 26

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

    Calculate the hypotenuse when a = 9cm and b = 10cm

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Share 140 in the ratio 4:3

    Answer: 80 and 60
  5. 5. Statistics Mean

    Find the mean of: 3, 7, 18, 8, 4

    Answer: 8

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