Находим значение следующих выражений. Записываем полученное решение.400 - 1 = (300 + 100) - 1 = 300 + (100 - 1) = 300 + 99 = 399.700 - 3 = (600 + 100) - 3 = 600 + (100 - 3) = 600 + 97 = 697.1000 - 5 = (900 + 100) - 5 = 900 + (100 - 5) = 900 + 95 = 995.500 - 2 = (400 + 100)- 2 = 400 + (100 - 2) = 400 + 98 = 498.1000 - 10 = (900 + 100) - 10 = 900 + (100 - 10) = 900 + 90 = 990.2300 - 9 = (2200 + 100) - 9 = 2200 + (100 - 9) = 2200 + 91 = 2291.800 - 30 = (700 + 100) - 300 = 700 + (100 - 30) = 700 + 70 = 770.1000 - 40 = (900 + 100) - 40 = 900 + (100 - 40) = 900 + 60 = 960.3500 - 10= (3400 + 100) - 10 = 3400 + (100 - 10) = 3400 + 90 = 3490. 210 - 12 = (100 + 110) - 12 = 100 + (110 - 1) = 100 + 98 = 198. 580 - 74 = (500 + 80) - 74 = 500 + (80 - 74) = 500 + 6 = 506.1000 - 25= (900 + 100) - 25 = 900 + (100 - 25) = 900 + 75 = 975.