Răspuns:
Explicație pas cu pas:
1a.232;
2.958-769=189;
n+189=365;
n=365-189;
n=176;
n+189=368;
n=368-189;
n=179;
176;177;178;179;
b.176;177;178;
c.176;177;178;179;
3.a.271-127=144;
305-89=216;
b.277-187=90;
235-208=30;
c.388-9=379;
275-56=219;
4.127+378=505;
383+378=761;
458+378=836;
675+378=1053;
508+378=886;
633+378=1011;
537+378=915;
499+378=877;
626+378=1004;
5a.275+53=328;
529+53=582;
328+582=910;
b.275+53=328;
529-53=476;
328+476=804;
c.275+49=324;
529-149=380;
324+380=704;