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Cornerstone · Grades 3–5 Keystones #1 22 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 2⁄6

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

    Solve: 3x - 16 = 26

    Answer: x = 14
  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 80 in the ratio 1:3:1

    Answer: 16, 48 and 16
  5. 5. Statistics Mean

    Find the mean of: 6, 4, 16, 2, 14

    Answer: 8.4

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