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Cornerstone · Grades 3–5 Keystones #1 19 April 2020 Skills week 1 of 7
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Five GCSE retrieval questions · 19 April 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 5⁄6

    Answer: 19⁄12
  2. 2. Algebra Two-step equations

    Solve: 6x - 8 = 34

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

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Divide 224 in the ratio 3:2:3

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

    Find the mean of: 8, 14, 12, 10

    Answer: 11

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