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Cornerstone · Grades 3–5 Keystones #1 10 March 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 4⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 5x - 8 = 67

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 12.37cm
  4. 4. Ratio Sharing in a ratio

    Divide 132 in the ratio 4:4:3

    Answer: 48, 48 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 14, 32, 23, 32, 29, 48, 35, 12. Give your answer to 2 decimal places

    Answer: 28.13

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