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Cornerstone · Grades 3–5 Keystones #1 12 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄5 + 1⁄3

    Answer: 11⁄15
  2. 2. Algebra Two-step equations

    Solve: 6x + 5 = 47

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

    Calculate the hypotenuse when a = 4cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 6.4cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 4:3

    Answer: 24 and 18
  5. 5. Statistics Mean

    Calculate the mean of: 31, 32, 40, 37, 25, 42

    Answer: 34.5

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