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Cluster Notes Maths

Percentage Shortcuts for Arithmetic Speed

Use multiplication shortcuts and value splitting to save time in objective exams.

5 min read Updated April 2026 ExamPrepWay Team
Coaching Notes

Study Notes

Exam ready Quick revision

Use multiplication shortcuts and value splitting to save time in objective exams.

What to focus on

  • Split 18% into 10% + 5% + 2% + 1%.
  • Convert awkward percentages into nearby easy percentages.

Quick formula / idea

  • 18% of x = 10% + 5% + 2% + 1% of x

18% of 250 = 25 + 12.5 + 5 + 2.5 = 45.

Practice prompts

  • Find 18% of 450.
  • Find 14% of 350.
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same-pillar Previous Year Percentage Question Patterns same-pillar Percentage Practice Set 1
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