Question

4
Объясни, как вычислить удобным способом.
4.28.25
25 29.4.3
15 (2-3)
36 (25.4)
25 (8.4)
15 (9.4)
59 (2.5)
54 (5.2)

Answer 1

Пошаговое объяснение:

4 * 28 * 25 = (4 * 25) * 28 = 100 * 28 = 2800

25 * 29 * 4 * 3 = (25 * 4) * (29 * 3) = 100 * 87 = 8700

15 * (2 - 3) = 15 * (-1) = -15

36 * (25 * 4) = 36 * 100 = 3600

25 * (8 * 4) = (25 * 4) * 8 = 100 * 8 = 800

15 * (9 * 4) = (15 * 4) * 9 = 60 * 9 = 540

59 * (2 * 5) = 59 * 10 = 590

54 * (5 * 2) = 54 * 10 = 540