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Cornerstone · Grades 3–5 Keystones #1 22 August 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 5⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x + 7 = 67

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 5cm

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 182 in the ratio 3:3:1

    Answer: 78, 78 and 26
  5. 5. Statistics Mean

    Find the mean of: 17, 3, 11

    Answer: 10.333333333333

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