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Cornerstone · Grades 3–5 Keystones #1 7 August 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 7 August 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 5⁄6

    Answer: 4⁄3
  2. 2. Algebra Two-step equations

    Solve: 2x - 18 = 4

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

    Calculate the hypotenuse when a = 5cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.07cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 3:4:1

    Answer: 36, 48 and 12
  5. 5. Statistics Mean

    Find the mean of: 2, 8, 10, 8

    Answer: 7

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