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Cornerstone · Grades 3–5 Keystones #1 28 December 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 December 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 1⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 8x - 5 = 67

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

    Calculate the hypotenuse when a = 3cm and b = 14cm

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 91 in the ratio 4:3

    Answer: 52 and 39
  5. 5. Statistics Mean

    Find the mean of: 14, 17, 3

    Answer: 11.333333333333

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