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Cornerstone · Grades 3–5 Keystones #1 11 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄12 + 2⁄12

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 7x - 12 = 44

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 18.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 145 in the ratio 2:2:1

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

    Calculate the mean of: 32, 43, 47, 46, 14, 21, 47. Give your answer to 2 decimal places

    Answer: 35.71

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