answersLogoWhite

0

One example might be if you want to multiply somthing in your head. It can be easier to split the number into its components, ie (45 x 12) becomes (40+5) x (10+2) so from here you expand out and it becomes (400+80+50+10) which is 540. It can help in doing stuff in your head.

User Avatar

Wiki User

11y ago

What else can I help you with?