Question

calcul rapid folosind proprietatile de comutativitate si asociativitatea ale adunarii dupa model
a.28+59+12 b.425+78+75 c.3,243+749+757+301 d.1,599+3,724+401+276 urgenttt va rog

Answer 1

a) 28+59+12 = (28+12)+59 = 40+59 = 99

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

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

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