Question

Tính nhanh

-56-3425353+23+(56+3425353-23)

Answer 1

= -56 - 3425353 + 23 + 56 + 3425353 - 23

= 0

Answer 2

- 56 - 3 425 353 + 23 + ( 56 + 3 425 353 - 23 )

= - 56 - 3 425 353 + 23 + 56 + 3 425 353 - 23

= ( 56 - 56 ) - ( 3 425 353 - 3 425 353 ) + ( 23 - 23 )

= 0 - 0 + 0 = 0