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Cornerstone · Grades 3–5 Keystones #1 22 October 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 October 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄8 + 3⁄5

    Answer: 39⁄40
  2. 2. Algebra Two-step equations

    Solve: 3x - 11 = 1

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.2cm
  4. 4. Ratio Sharing in a ratio

    Divide 140 in the ratio 1:2:2

    Answer: 28, 56 and 56
  5. 5. Statistics Mean

    Calculate the mean of: 41, 46, 46, 22, 27, 48, 20, 39. Give your answer to 2 decimal places

    Answer: 36.13

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