=44+50
=94
= -87-12 +487+512
= (512-12)+ (487-87)
= 500+ 400
=900.
= (-168-132) +(11+89)
= -300+ 100
=-200
D
= -38+ (-24)
= -62
1. B
2. D
3. C
4. B
5. D
Đúng! :>