вычислите :1) 81:27*100+25036-5000. 2) (169-309:3):6*100. 3) 400-1600:100+400000. 4) (480105-105):10+602:7 .5) 852890-45*2-200*4.

Пример №1.81 : 27 * 100 + 25 036 - 5000 = 20 336;81 / 27 = 3;3 * 100 = 300;300 + 25 036 = 25 336;25 336 - 5000 = 20 336.Пример №2.(169 - 309 : 3) : 6 * 100 = 1100;309 / 3 = 103;169 - 103 = 66;66 / 6 = 11;11 * 100 = 1100.Пример №3.400 - 1600 : 100 + 400 000 = 400 384;1600 / 100 = 16;400 - 16 = 384;384 + 400 000 = 400 384.Пример №4.(480 105 - 105) : 10 + 602 : 7 = 48 086;480 105 - 105 = 480 000;480 000 / 10 = 48 000;602 / 7 = 86;48 000 + 86 = 48 086.Пример №5.852 890 - 45 * 2 - 200 * 4 = 852 000;45 * 2 = 90;852 890 - 90 = 852 800;200 * 4 = 800;852 800 - 800 = 852 000.Пример №6.(187 - 122) : 5 * 3 + 15 000 = 15 039;187 - 122 = 65;65 / 5 = 13;13 * 3 = 39;39 + 15 000 = 15 039.Пример №7.615 : 5 + 10 200 : 100 - 160 : 4 = 185;615 / 5 = 123;10 200 / 100 = 102;123 + 102 = 225;160 / 4 = 40;225 - 40 = 185.