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Cornerstone · Grades 3–5 Keystones #1 29 January 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 29 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 4⁄8

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 10 = 52

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

    Calculate the hypotenuse when a = 6cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 112 in the ratio 1:2:4

    Answer: 16, 32 and 64
  5. 5. Statistics Mean

    Find the mean of: 3, 2, 13

    Answer: 6

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