a).139×5+684:9×4-572:2=695+76×4-286= 695+304-286=999-286 (C).b). 876:3+215×2-714:7:3=292+430-102:3= 292+430-34=722-34=688 (R). c).300:6:10+970:10-36×2 =50:10+97-72= 5+97-72=30 (P). d).39×25-724:4×5+205×3= 975-181×5+615=975-905+615=70+615=685 ORDONARE CRESCATOARE:30,685,688,713; CUVANTUL:PARC.