Верно Неверно Ответ
| **5 | + | | 475
| **2 | | + |1032
| **5 | + | |115
| **4 | | + |84
| **0 | + | |350
| **0 | | + |1900
4000 * 520 = 4000 * (500+20) = 4000*500 + 4000*20 = 2000000 + 80000 = 2080000
90500*80 = (90000+500)*80 = 90000*80+500*80= 7200000+40000=7240000
150+х=699
х=699-150
х=549
150+549=699
699=699