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Cornerstone · Grades 3–5 Keystones #1 19 May 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 May 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄4 + 2⁄3

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 6x + 7 = 49

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

    Calculate the hypotenuse when a = 10cm and b = 12cm

    Answer: 15.62cm
  4. 4. Ratio Sharing in a ratio

    Divide 72 in the ratio 1:4:1

    Answer: 12, 48 and 12
  5. 5. Statistics Mean

    Find the mean of: 2, 19, 7

    Answer: 9.3333333333333

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