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Cornerstone · Grades 3–5 Keystones #1 30 April 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 April 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 2⁄4

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

    Solve: 2x + 8 = 22

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 176 in the ratio 3:4:4

    Answer: 48, 64 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 50, 32, 34, 35, 50, 26, 49, 17

    Answer: 36.6

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