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Cornerstone · Grades 3–5 Keystones #1 30 December 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 30 December 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄6 + 5⁄7

    Answer: 29⁄21
  2. 2. Algebra Two-step equations

    Solve: 2x + 11 = 19

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.54cm
  4. 4. Ratio Sharing in a ratio

    Divide 232 in the ratio 1:3:4

    Answer: 29, 87 and 116
  5. 5. Statistics Mean

    Calculate the mean of: 18, 44, 33, 38, 26, 49, 9

    Answer: 31

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