576 : 6 8 - 200 : 8 5

1-ый пример.

576 : 6 * 8 - 200 : 8 * 5 = 643;

576 / 6 = 96;

96 * 8 = 768;

200 / 8 = 25;

25 * 5 = 125;

768 - 125 = 643.

2-ой пример.

300 : 4 : 25 + 679 : 7 = 100;

300 / 4 = 75;

75 / 25 = 3;

679 / 7 = 97;

3 + 97 = 100.

Третий пример.

(868 : 7 + 92) : 3 - 156 : 4 = 33;

868 / 7 = 124;

124 + 92 = 216;

216 / 3 = 72;

156 / 4 = 39;

72 - 39 = 33.

4-ый пример.

432 : 6 : (53 * 4 - 1000 : 5) = 6;

432 / 6 = 72;

53 * 4 = 212;

1000 / 5 = 200;

212 - 200 = 12;

72 / 12 = 6.