Вычислим значения разностей столбиком:
1) $$69759 - 32418 = 37341$$
2) $$504379 - 201122 = 303257$$
3) $$384540 - 12236 = 372304$$
4) $$573280 - 231179 = 342101$$
5) $$459970 - 123458 = 336512$$
6) $$459600 - 134527 = 325073$$
7) $$178800 - 63798 = 115002$$
8) $$543900 - 312764 = 231136$$
9) $$900000 - 31261 = 868739$$
10) $$805401 - 96312 = 709089$$
11) $$710701 - 54936 = 655765$$
12) $$835321 - 4509 = 830812$$
13) $$375143 - 42385 = 332758$$
14) $$900045 - 32164 = 867881$$
15) $$540803 - 251702 = 289101$$
16) $$956401 - 742908 = 213493$$
17) $$100003 - 88841 = 11162$$
18) $$112567 - 90438 = 22129$$
19) $$900078 - 801188 = 98890$$
20) $$511231 - 334506 = 176725$$