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

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

  1. 1. Number Adding fractions

    Add: 4⁄5 + 1⁄3

    Answer: 17⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 9 = 51

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio Sharing in a ratio

    Divide 232 in the ratio 4:3:1

    Answer: 116, 87 and 29
  5. 5. Statistics Mean

    Find the mean of: 19, 6, 24, 11

    Answer: 15