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Cornerstone · Grades 3–5 Keystones #1 29 September 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 September 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 2x - 16 = -2

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

    Calculate the hypotenuse when a = 3cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.44cm
  4. 4. Ratio Sharing in a ratio

    Divide 190 in the ratio 4:3:3

    Answer: 76, 57 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 8, 43, 49, 37, 36, 40, 46, 10. Give your answer to 2 decimal places

    Answer: 33.63

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