• Want to take part in this year's BoS Trials event for Maths and/or Business Studies?
    Click here for details and register now!
  • YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page

Math trick (1 Viewer)

Omium

Knuckles
Joined
Feb 7, 2008
Messages
1,738
Location
Physics
Gender
Male
HSC
2007
Consider your Calculator

7 8 9

4 5 6

1 2 3





Step 1 : Add the numbers vertically
741 + 147 + 852 + 258 + 963 + 369 = 3330

Step 2 : Add the numbers horizontally
789 +987 + 654 + 456 + 321 + 123 = 3330

Pretty cool huh ?

Final trick:

Step 1 : Add numbers diagonally

159 + 951 = 1110

357 + 753 = 1110

And just for good measure 1110 * 3 = 3330.

:)
 
Last edited:

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top