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

Five GCSE retrieval questions · 5 January 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 7x + 12 = 40

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 12cm

    Answer: 16.97cm
  4. 4. Ratio Sharing in a ratio

    Divide 190 in the ratio 3:4:3

    Answer: 57, 76 and 57
  5. 5. Statistics Mean

    Find the mean of: 15, 4, 3

    Answer: 7.3333333333333

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