a) 24,3:6-0,35*7+3,2*19 = 4,05 - 2,45 + 60,8 = 1,6 + 60,8 = 62,4
б) 47,978-1000-47,978:10 = 47,978 - 1000 - 4,7978 = -952,022 - 4,7978 = -956,8198