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

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

  1. 1. Number Adding fractions

    Add: 2⁄3 + 5⁄8

    Answer: 31⁄24
  2. 2. Algebra Two-step equations

    Solve: 5x - 19 = 51

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Divide 130 in the ratio 1:2:2

    Answer: 26, 52 and 52
  5. 5. Statistics Mean

    Calculate the mean of: 37, 9, 18, 49, 12, 26, 45

    Answer: 28

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