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Cornerstone · Grades 3–5 Keystones #1 16 June 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 June 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 3⁄5

    Answer: 11⁄10
  2. 2. Algebra Two-step equations

    Solve: 6x + 12 = 78

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 11cm

    Answer: 15.56cm
  4. 4. Ratio Sharing in a ratio

    Divide 154 in the ratio 4:3:4

    Answer: 56, 42 and 56
  5. 5. Statistics Mean

    Find the mean of: 14, 19, 20, 6

    Answer: 14.75

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