ON 0 Gontoh 1.3 Tentukan hasil dari pengurangan bilangan bulat berikut! – . a. 2- 7 b. 2-(-7) . C. -2-7 Il d. -2-(-7) Penyelesaian: 2-7 = … a. –7 2.
Penyelesaian :
A.
=> 2 – 7
= – ( 7 – 2 )
= -5 ☑
_____________———______________
B.
=> 2 – ( -7 )
= 2 + 7
= 9 ☑
_____________———______________
C.
=> -2 – 7
= -( 2 + 7 )
= -9 ☑
_____________———______________
D.
=> -2 – ( -7 )
= ( 7 – 2 )
= 5 ☑
– – – – – – – – – – – – – – – – – – – – –