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Cornerstone · Grades 3–5 Keystones #1 3 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 6x + 3 = 45

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

    Calculate the hypotenuse when a = 7cm and b = 14cm

    Answer: 15.65cm
  4. 4. Ratio Sharing in a ratio

    Divide 160 in the ratio 1:2:1

    Answer: 40, 80 and 40
  5. 5. Statistics Mean

    Find the mean of: 3, 6, 4

    Answer: 4.3333333333333

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