Вычислите :
45815*45818-45814*45816
1) 45815*45818=2099151670 2) 45814*45816=2099014224 3) 2099151670-2099014225=137446
45815х 45818 - 45814х 45816 =2.099.151.670 - 2.099.014.224 = 137.446