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Cornerstone · Grades 3–5 Keystones #1 3 February 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 February 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 6⁄9

    Answer: 8⁄9
  2. 2. Algebra Two-step equations

    Solve: 7x - 14 = 35

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

    Calculate the hypotenuse when a = 3cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 7.62cm
  4. 4. Ratio Sharing in a ratio

    Divide 290 in the ratio 3:4:3

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

    Calculate the mean of: 39, 20, 6, 31, 32, 46, 47. Give your answer to 2 decimal places

    Answer: 31.57

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