Question

[Nguyễn Ngọc Thy]

Tính nhanh:4x7x25

Answer 1

[『Kuroba ム Tsuki Ryoo ︵²ᵏ⁷』]

`@` `\text {Ans}`

`\downarrow`

`4 \times 7 \times 25`

`= (4 \times 25) \times 7`

`= 100 \times 7`

`= 700`

Answer 2

[Nguyễn Đức Trí]

\(4x25x7=100x7=700\)