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Cornerstone · Grades 3–5 Keystones #1 30 March 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 1⁄3

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x - 11 = -3

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 9.49cm
  4. 4. Ratio Sharing in a ratio

    Divide 140 in the ratio 2:4:1

    Answer: 40, 80 and 20
  5. 5. Statistics Mean

    Find the mean of: 9, 19, 8, 4

    Answer: 10

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