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Cornerstone · Grades 3–5 Keystones #1 13 January 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 3⁄6

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 6x + 10 = 46

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

    Calculate the hypotenuse when a = 6cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 16.16cm
  4. 4. Ratio Sharing in a ratio

    Divide 198 in the ratio 3:2:4

    Answer: 66, 44 and 88
  5. 5. Statistics Mean

    Calculate the mean of: 31, 44, 15, 8, 42, 30. Give your answer to 2 decimal places

    Answer: 28.33

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