Răspuns :
1 metoda:
(17+23+9)x100= 49x100= 4900
2 metoda:
(17+23+9)x100=17x100+23x100+9x100=1700+2300+900=4900
(17+23+9)x100= 49x100= 4900
2 metoda:
(17+23+9)x100=17x100+23x100+9x100=1700+2300+900=4900
1 mod:(17+23+9)x100=49x100=4900 2 mod:(17x100)+(23x100)+(9x100)=1700+2300+900=4900
ma bucur ca te-am putut ajuta
ma bucur ca te-am putut ajuta