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Cornerstone · Grades 3–5 Keystones #1 2 November 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 November 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 2⁄8

    Answer: 13⁄12
  2. 2. Algebra Two-step equations

    Solve: 4x + 7 = 19

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

    Calculate the hypotenuse when a = 6cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio Sharing in a ratio

    Share 133 in the ratio 3:4

    Answer: 57 and 76
  5. 5. Statistics Mean

    Find the mean of: 8, 1, 2, 17

    Answer: 7