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Cornerstone · Grades 3–5 Keystones #1 1 November 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 November 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄8 + 3⁄7

    Answer: 31⁄56
  2. 2. Algebra Two-step equations

    Solve: 2x - 7 = 17

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

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

    Answer: 7.07cm
  4. 4. Ratio Sharing in a ratio

    Divide 203 in the ratio 2:4:1

    Answer: 58, 116 and 29
  5. 5. Statistics Mean

    Calculate the mean of: 39, 7, 37, 27, 22, 19. Give your answer to 2 decimal places

    Answer: 25.17

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