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Cornerstone · Grades 3–5 Keystones #1 21 May 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 21 May 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 6x - 17 = 19

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 13cm

    Answer: 15.26cm
  4. 4. Ratio Sharing in a ratio

    Divide 210 in the ratio 2:1:4

    Answer: 60, 30 and 120
  5. 5. Statistics Mean

    Find the mean of: 7, 20, 6

    Answer: 11

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