Multiplication Rules For Speed Maths

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1900

MULTIPLICATION RULES FOR SPEED MATHS

Dear Aspirants

With Many Competitive exams scheduled to take place in coming months we are here with multiplication rules to speed up your mathematical skills.

  • Multiply by 5: Multiply by 10 and divide by 2.
  • Multiply by 6: Sometimes multiplying by 3 and then 2 is easy.
  • Multiply by 9: Multiply by 10 and subtract the original number.
  • Multiply by 12: Multiply by 10 and add twice the original number.
  • Multiply by 13: Multiply by 3 and add 10 times original number.
  • Multiply by 14: Multiply by 7 and then multiply by 2
  • Multiply by 15: Multiply by 10 and add 5 times the original number, as above.
  • Multiply by 16: You can double four times, if you want to. Or you can multiply by 8 and then by 2.

Ministers In PM Modi’s Cabinet




Political And Economic Organizations across the world

  • Multiply by 17: Multiply by 7 and add 10 times original number.
  • Multiply by 18: Multiply by 20 and subtract twice the original number (which is obvious from the first step).
  • Multiply by 19: Multiply by 20 and subtract the original number.
  • Multiply by 24: Multiply by 8 and then multiply by 3.
  • Multiply by 27: Multiply by 30 and subtract 3 times the original number (which is obvious from the first step).
  • Multiply by 45: Multiply by 50 and subtract 5 times the original number (which is obvious from the first step).

Start-up India Scheme




Digital India Program

  • Multiply by 90: Multiply by 9 (as above) and put a zero on the right.
  • Multiply by 98: Multiply by 100 and subtract twice the original number.
  • Multiply by 99: Multiply by 100 and subtract the original number.

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