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Cornerstone · Grades 3–5 Keystones #1 2 May 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 May 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄8 + 2⁄4

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x - 11 = 49

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Divide 154 in the ratio 2:1:4

    Answer: 44, 22 and 88
  5. 5. Statistics Mean

    Calculate the mean of: 27, 31, 26, 8, 32, 45, 44. Give your answer to 2 decimal places

    Answer: 30.43

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