404. Выполните вычисления: a) 1- б)-5+ 3 в) 2-7; 4 5 5- -2+7; -1+ 5- -5-

a) 1- = 1 - 0.4 = 0.6 5 -1+ = -1 + 0.4 = -0.6 5 -1+ = -1 + 0.4 = -0.6 5 б) -5+ = -5 + 0.44 = -4.56 4 9 5- = 5 - 0.44 = 4.56 9 -5- = -5 - 0.44 = -5.44 9 в) 2-7 = 2.33 - 7 = -4.67 3 -2+7 = -2.67 + 7 = 4.33 -2-7 = -2 - 7 = -9