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Cornerstone · Grades 3–5 Keystones #1 5 July 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 July 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 1⁄4

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

    Solve: 2x + 5 = 15

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

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 196 in the ratio 2:2:3

    Answer: 56, 56 and 84
  5. 5. Statistics Mean

    Find the mean of: 9, 6, 5, 6, 16

    Answer: 8.4

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