Question

Помогите решить:
Заранее спасибо✔

Answer 1

номер 85
2 * (5 * 89) = (2 * 5) * 89 = 10 * 89 = 890
(4 * 8.760) * 25 = (4 * 25) * 8.760 = 100 * 8760 = 876.000
645 * 2 * 50 = (2 * 50) * 645 = 100 * 645 = 64.500
25 * 4 * 2468 = (25 * 4) * 2468 = 100 * 2468 = 246800
125 * 457 * 8 * 10 = (125 * 8) * (457 * 10) = 1000 * 4570 = 4.570.000
2 * 5 * 25 * 123 * 125 * 8 * 4 = (2 * 5) * ( 25 * 4) * (125 * 8) * 123 = 10 * 100 * 1000 * 123 = 123.000.000
номер 84 (а, в)
а)
10 * 5 * 500 = (5 * 500) * 10 = 2.500 * 10 = 25.000
в)
(3 * 12) * (2 * 25) = 36 * 50 = 1.800