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Cornerstone · Grades 3–5 Keystones #1 25 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 1⁄5

    Answer: 13⁄15
  2. 2. Algebra Two-step equations

    Solve: 7x + 3 = 38

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 13.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 260 in the ratio 2:1:2

    Answer: 104, 52 and 104
  5. 5. Statistics Mean

    Calculate the mean of: 41, 32, 12, 29, 23, 35, 17

    Answer: 27

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