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

  1. 1. Number Adding fractions

    Calculate: 7⁄12 + 4⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 2x + 13 = 25

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 3:4

    Answer: 36 and 48
  5. 5. Statistics Mean

    Find the mean of: 7, 12, 18, 7

    Answer: 11

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