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Cornerstone · Grades 3–5 Keystones #1 26 March 2011 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 March 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 2⁄4

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 7x + 13 = 62

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

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 133 in the ratio 2:4:1

    Answer: 38, 76 and 19
  5. 5. Statistics Mean

    Find the mean of: 19, 4, 19

    Answer: 14

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