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Cornerstone · Grades 3–5 Keystones #1 15 May 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 May 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 4x + 10 = 58

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Divide 208 in the ratio 1:4:3

    Answer: 26, 104 and 78
  5. 5. Statistics Mean

    Find the mean of: 12, 13, 9

    Answer: 11.333333333333

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