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Cornerstone · Grades 3–5 Keystones #1 21 July 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 21 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄10 + 5⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 3x + 5 = 26

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.2cm
  4. 4. Ratio Sharing in a ratio

    Divide 144 in the ratio 4:3:2

    Answer: 64, 48 and 32
  5. 5. Statistics Mean

    Find the mean of: 14, 5, 20, 1

    Answer: 10

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