528 x 330 ----- 000 +1584 +1584 ----- 174240
907 x 203 ----- 2721 +000 +1814 ----- 183671
634100 - 17 ------ 634083
Ответ: 528 ⋅ 330 = 174240; 907 ⋅ 203 = 183671; 634 100 – 17 = 634083