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Cornerstone · Grades 3–5 Keystones #1 4 January 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 6x - 6 = 60

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Divide 152 in the ratio 3:1:4

    Answer: 57, 19 and 76
  5. 5. Statistics Mean

    Find the mean of: 4, 18, 9, 14, 15

    Answer: 12

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