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Cornerstone · Grades 3–5 Keystones #1 3 December 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 8x - 17 = 71

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio Sharing in a ratio

    Divide 150 in the ratio 3:3:4

    Answer: 45, 45 and 60
  5. 5. Statistics Mean

    Calculate the mean of: 15, 45, 40, 46, 16, 46. Give your answer to 2 decimal places

    Answer: 34.67

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