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Samanatiandrei
a fost răspuns

Aflati valoraea expresiei numerice;-3-8+12-4+11=;
9-2-8+4-21=;-16+9_27-11-8=;4-5+11-9-4=;-16-7+32-21+17=;

Răspuns :

SMR
9-2-8+4-21= 7-8+4-21= -1+4-21= 3-21= -18
-16+9-27-11-8= -7-27-11-8= -34-11-8= -45-8=-53
4-5+11-9-4= -1+11-9-4= 10-9-4= -3
-16-7+32-21+17= -23+32-21+17= 9-21+17= -12+17= 5