a) | -18 | + ( -12 )
= 18 - 12
= 6
b) ( -20 ) + | -88 |
= -20 + 88
= 68
c) | -37 | + ( - | 15 | )
= 37 - 15
= 22
d) 99 - [ 109 + ( -9 ) ]
= 99 - 100
= -1
e) ( - | 22 | ) + ( - | 16 | )
= -22 - 16
= -38
f) ( -23 ) + 13 + ( -17 ) + 57
= -23 + 13 - 17 + 57
= -10 + 40
=30
a, |-18| + ( -12 ) = 6
b, ( -20 ) +| -88 | = 68
c, | -37 | + ( - | 15 | ) = 22
d, 99 - [109 + ( -9 )] = -1
e, ( - | -22 | ) + ( - | 16 | ) = -38
f, ( -23 ) + 13 + ( -17 ) + 57 = 30
bài này dễ mà bạn