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Cornerstone · Grades 3–5 Keystones #1 10 November 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 2⁄5

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 7x + 13 = 76

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.03cm
  4. 4. Ratio Sharing in a ratio

    Divide 120 in the ratio 1:2:2

    Answer: 24, 48 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 46, 22, 26, 25, 21, 14, 50, 9. Give your answer to 2 decimal places

    Answer: 26.63

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