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Cornerstone · Grades 3–5 Keystones #1 2 January 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 January 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 5⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 7x + 12 = 68

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 216 in the ratio 4:1:4

    Answer: 96, 24 and 96
  5. 5. Statistics Mean

    Find the mean of: 4, 12, 7, 17

    Answer: 10

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