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Cornerstone · Grades 3–5 Keystones #1 2 September 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 September 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 4⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 3x - 18 = 3

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

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

    Answer: 11.31cm
  4. 4. Ratio Sharing in a ratio

    Divide 132 in the ratio 3:4:4

    Answer: 36, 48 and 48
  5. 5. Statistics Mean

    Find the mean of: 2, 14, 17, 13, 14

    Answer: 12

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