Efectuează: T a) 8:8x8+8x8-8=64 b) 3 273-[(9 x 9:9 +6x6:6):5+8 × 4]: 7 = c) 100 (25 x 5-6 x 7+17): 10 x 9= d) (11 111 + 22 222 + 33 333 + 44 444) : (5 + 5) = e) (3 x 3+3:3+6×8:8) + (55:5+4-33:3+ 2) +88:8x8+8:8= f) (72:9+ 6 x 5+ 36:6): [(72:4+8 x 9) -5x 10+4] = g) 40 + 3x {36:9+ 3x [50+ 3x (400:8-98 : 2)]} = h) (53 624:4+23 456:2) - 236 x 12:8= i) [984:8-455:7+(11 x 63 x 9-4x5x13)]: 5 + 6 x 100 = j) (925-13×15): 2+ {[564 +128-64:2+73x2-(93:3+24:2)-5x11]-50×2} k) 2712:6+ [136 x 75-(324:4:9x3+45) + 246-123:3] = 1) 500: [30: (6×4-9x2)+339:3-124:4+5x2 +3] = ajutor va rog urgent cine ma ajută ​