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Cornerstone · Grades 3–5 Keystones #1 19 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 4⁄5

    Answer: 49⁄30
  2. 2. Algebra Two-step equations

    Solve: 2x - 16 = 14

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 8.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 114 in the ratio 1:4:1

    Answer: 19, 76 and 19
  5. 5. Statistics Mean

    Find the mean of: 20, 7, 8, 13

    Answer: 12

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