Question

Calculeaza rapid,folosind proprietatile de comutativitate si asociativitate ale adunarii,dupa model.Model:34+57+6=(34+6)+57=40+57=97 b)425+78+75;c)3243+749+757+301;d)1599+3724+401+276.Ajutatima va rog!REPEDE!​

Answer 1

b) 425+75+78=500+78=578

c)(3243+757)+(749+301)=4000+1050=5050

d) (3724+276)+(1599+401)=4000+2000=6000

Sper ca team ajutat :)