100.000 - (248.730-199.006)

(5+77.896) - (89.107-82.164)

3.500-184 - (71.203-69.350)

9.004-687+13+12.501

Порядок действий и решение столбиком

248.730-199.006=49.724, 100.000-49.724=50.276.

5+77.896=82.896, 89.107-82.164=6.943, 82.896-6.943=75.953.

71.203-69.350=1.853, 3.500-184=-180.5, - 180.5-1.853=-182.353.

9.004-687=-677.996, - 677.996+13=-664.996, - 664.996+12.501=-652.495.