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Cornerstone · Grades 3–5 Keystones #1 25 March 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄10 + 2⁄10

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

    Solve: 6x - 10 = 26

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

    Calculate the hypotenuse when a = 4cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Divide 198 in the ratio 4:1:4

    Answer: 88, 22 and 88
  5. 5. Statistics Mean

    Find the mean of: 6, 14, 19

    Answer: 13

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