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Cornerstone · Grades 3–5 Keystones #1 8 March 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 8 March 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

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

    Solve: 2x + 8 = 32

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 11.18cm
  4. 4. Ratio Sharing in a ratio

    Divide 77 in the ratio 3:3:1

    Answer: 33, 33 and 11
  5. 5. Statistics Mean

    Find the mean of: 8, 17, 8

    Answer: 11

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