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Cornerstone · Grades 3–5 Keystones #1 22 June 2020 Skills week 1 of 7
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Five GCSE retrieval questions · 22 June 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 7x - 14 = 56

    Answer: x = 10
  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 170 in the ratio 4:3:3

    Answer: 68, 51 and 51
  5. 5. Statistics Mean

    Find the mean of: 9, 15, 11, 9

    Answer: 11

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