Question

4класс стр68 №7
(48*34):51
(54*38):57
(32²-31²)²
22+(28*21)-11

Answer 1

Пошаговое объяснение:

(48 * 34) : 51 = 1632 : 51 = 32

(54 * 38) : 57 = 2052 : 57 = 36

(32² - 31²)² = (1²)² = 1² = 1

(32² - 31²)² = ( (32-31)*(32+31) )² = (1 * 63)² = 63² = 3969

22 + (28 * 21) - 11 = 22 + 588 - 11 = 599