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Cornerstone · Grades 3–5 Keystones #1 23 June 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 June 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 7⁄8

    Answer: 43⁄40
  2. 2. Algebra Two-step equations

    Solve: 5x + 11 = 26

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 210 in the ratio 4:3:3

    Answer: 84, 63 and 63
  5. 5. Statistics Mean

    Find the mean of: 22, 6, 2

    Answer: 10

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