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Try this trick. It's gonna figure out your birthday fast! Calculator recommended.
UPDATE: YOU MUST USE AMERICAN FORM OF DATES. FOR EXAMPLE, IF YOU...
stupid1678 • 143,153 views
i got it right it's amazing thanks.
Learn this fast way to multiply 2 digit numbers or Integers. Same trick can be used to multiply large numbers or to do algebra multiplication. To d...
Glad2teachAlgebra • 371,954 views
OMG ur amazing , ur world's best maths teacher ever thank u very much u really helped us.
i got it right it's amazing thanks.