Question

Tính nhanh 37. 38 -19 . 74

Answer 1

Theo đề ra ta có: 37. 38 - 19. 74= 37. 19. 2- 19. 37. 2= 0

Answer 2

\(37.38-19.74\)

\(=37.19.2-19.37.2\)

\(=37.\left(19.2-19.2\right)\)

\(=37.\left(38-38\right)\)

\(=37.0\)

\(=0\)

Answer 3

37.38-19.74

= 37.19.2 - 19. 37.2

= 37.(19.2-19.2)

= 37.0

= 0

Answer 4

37 . 38 - 19 . 74 = 37 . 38 - 19 . 74 = 37 . 38 - 19 . 2 . 37 = 37 . 38 - 38 . 37 = 0

Answer 5

37 . 38 - 19 . 74

= 37 . 19 . 2 - 19 . 37 . 2

= 37 . (19 . 2 - 19 . 2)

= 37 . (38 - 38)

= 37 . 0

= 0