80 2 Calculează, respectând ordinea operațiilor. 40 000 5 x 259 = 89 004+ 23 x 89 = (369: 3-8 x 9) x 2 = (8 565 : 5 +8 154 : 3 - 3 976) x 6 = 8 905:5- (9 040 : 4 - 320) : 5 = (9 114: 7 +7 844 : 4 + 654) x 5 = 2 952: 3 - (4 530 : 5 + 708) : 2 = (4 656 : 6 + 8 004 : 2 + 209) x 4 = 4 324 : 4+ (9 924 : 3+290) : 7 = (4 000:5+9 918:9-1 094) x 3 = 9 036: 9+ (5 805:9 +255): 9 = 896 x 340 + 543 x (900-4 932: 6) = 763 x 706 + 907 x (701 - 5 432 : 8) = 907 x 276 + 503 x (786 - 4 935: 7) = 36 017-9 587 : 3 = 25 1098 564 : 4 = 900 - [484: (77:7-63:9)] x 5: 912: 3 + 17 x 100 - 18 x 1 = 600 8:3+ 525 : 5 - 720 : 9 = 8 + 309 x 3 + 28 x 5 - 124:2= [81-81 (1649: 7)] + [2 + 2 x (63:3-29 x [(20 x 20 - 20): 2- 190] x 765 : 5 + 25 = [9 x (42 - 36) x 4 - (204-96)]: 3 + 36 = [(170: 5-29) (100 - 95)] x 307+203 = (45-34) x (56: 8-7): 10+ 3x (56 - 8 x 6) = 201 x 295 + 902 x (579- 4 024: 8) = 624 x 206+ 234 x (408 -2 583: 7) =​