298. Efectueaza
(40:4+34 +10):8 +7*(18-8:)
1) 18.6+(8 x 5:4 - 18:3+2) * 3
5 10 (18-8) + 55 - 72: (3 + 5) +15
d) 10 % (25:5+5) + 90 - (7x4- 35.5)
(C) 20 - (50:5+ 5 0) x 2 +45 + 6 x 5
) 4 4 + 28:7:2 (9x4:6 +8:4)
alculeaza​