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Cornerstone · Grades 3–5 Keystones #1 18 June 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 June 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 2x - 8 = 2

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

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Divide 70 in the ratio 3:1:3

    Answer: 30, 10 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 22, 22, 29, 41, 34, 47, 50, 12

    Answer: 32.1

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