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Cornerstone · Grades 3–5 Keystones #1 15 January 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 15 January 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 5⁄9

    Answer: 7⁄9
  2. 2. Algebra Two-step equations

    Solve: 3x - 8 = 4

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

    Calculate the hypotenuse when a = 8cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 9.43cm
  4. 4. Ratio Sharing in a ratio

    Share 98 in the ratio 4:3

    Answer: 56 and 42
  5. 5. Statistics Mean

    Calculate the mean of: 11, 18, 28, 45, 38, 43, 18, 40. Give your answer to 2 decimal places

    Answer: 30.13

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