Răspuns:
Explicație pas cu pas:
Mod 1
5 × (134 + 537) = 5 × 671 = 3 355
Mod 2
5 × (134 + 537) = 5 × 134 + 5 × 537
= 670 + 2 685 = 3 355
Mod 1
21 × (98 + 345) = 21 × 443 = 9 303
Mod 2
21 × (98 + 345) = 21 × 98 + 21 × 345
= 2 058 + 7 245 = 9 303
Mod 1
3 × (790 - 99) = 3 × 691 = 2 073
Mod 2
3 × (790 - 99) = 3 × 790 - 3 × 99
= 2 370 - 297 = 2 073
Mod 1
56 × (76 + 98) = 56 × 174 = 9 744
Mod 2
56 × (76 + 98) = 56 × 76 + 56 × 98
= 4 256 + 5 488 = 9 744
Mod 1
4 × (728 - 179) = 4 × 549 = 2 196
Mod 2
4 × (728 - 179) = 4 × 728 - 4 × 179
= 2 912 - 716 = 2 196
Mod 1
43 × (157 + 473) = 43 × 630 = 27 090
Mod 2
43 × (157 + 473) = 43 × 157 + 43 × 473
= 6 751 + 20 339 = 27 090
