Question

Вычисли удобным способом:(8×4)×5 6×(8×10) 3×(8×5) (7×5)×6 (9×20)×5 (20×5)×17 4×(40×5) 50×(2×3)

Answer 1

8x(4x5)=160 7x(5x6)=210

Answer 2

(4х5)х8
(6х8)х10
(3х5)х8
(5х6)х7
(20х5)х9
(17х5)х20
(4х5)х40
(50х2)х3

Answer 3

1.160
2.480
3.120
4.210
5.900
6.1700
7.600
8.300

Answer 4

спс