Răspuns:
Explicație pas cu pas:
a)9999+1856= (1855+1)+(10000-1)=1855+10000=11855
b)9998+6847=(6845+2)+(10000-2)=6845+10000=16845
c)99999+245186=(100000-1)+(245185+1)=100000+245185=345185
d)99995+197288=(100000-5)+(197283+5)=100000+197283=297283
Sper ca te-am ajutat!