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Cornerstone · Grades 3–5 Keystones #1 27 May 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 3⁄4

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

    Solve: 7x + 11 = 53

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 133 in the ratio 3:3:1

    Answer: 57, 57 and 19
  5. 5. Statistics Mean

    Calculate the mean of: 40, 26, 17, 24, 26, 48. Give your answer to 2 decimal places

    Answer: 30.17

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