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Cornerstone · Grades 3–5 Keystones #1 23 October 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 October 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 4⁄6

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 7x + 11 = 67

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 6cm

    Answer: 11.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 75 in the ratio 1:3:1

    Answer: 15, 45 and 15
  5. 5. Statistics Mean

    Find the mean of: 9, 10, 17

    Answer: 12

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