👤

ajutor vă rog frumos!!!)​

Ajutor Vă Rog Frumos class=

Răspuns :

a)89+11=100+254=254

145+55=100+598=698

b)899+201=1000+576=1576

391+109=500+(280+220)=500+500=1000

c)3010+5090=8100+(555+445)=8100+1000=9100

2005+95=2100+(768+32)=2100+800+19=2918