Search

Amazing Maths Hack!!

19x18=? Surprise your maths teacher with this must-know hack.



Suppose we want to find 13x12= ?

Let us start:

3+2=5

3x2=6

therefore: 13x12= 150+6= 156


an other example:

15x19=?

9+5=14

9x5=45

therefore: 15x19= 240+45= 285


next let us calculate 18x17=?

8+7=15

8x7=56

therefore: 250+56= 306


next we calculate 14x18=?

8+4=12

8x4=32

therefore: 220+32= 252


The trick is working only for two numbers between 0 and 19.



QuantumGhost is our Editorial Board.



14 views
PHYSTRO 
  • Science & Technology Forum, News & Magazine
  • Physics & Astronomy 
  • Quality Products & Ebooks

About         Terms of use        Privacy & Cookies        © Phystro 2019

  • Wix Facebook page
  • Wix Twitter page
  • YouTube Social  Icon
  • Instagram