Dasar - Dasar Matematika (73)

Dasar - Dasar Matematika (73)

Oleh : Suryadi

Director of Education Apenso Indonesia

Sifat Pengurangan Bilangan Bulat

Jika a, c, dan d bilangan-bilangan bulat, maka :

a – ( c + d ) = ( a – c ) – d

Contoh :

Bila a = 4, c = - 5, dan d = - 6, maka :

4 – ( ( - 5 ) + ( - 6 ) ) = ( 4 – ( - 5 )) – ( - 6 )

4 – ( ( - 5 ) + ( - 6 )) = 4 – ( - 11 ) = 15

( 4 – ( - 5 ) ) – ( - 6 ) = 9 + 6 = 15