Question

Tính hợp lí

35 . 5 – 15 . (-5);                                       

Answer 1

35.5 - 15.(- 5)

= (35.15).[5 - (- 5)]

= 525.10

= 5250

Answer 2

`35.5-15.(-5)`

`=35.5+15.5`

`=5.(35+15)`

`=5.50`

`=250`

Answer 3

35.5 - 15.(-5)

= 5.( 35 + 15)

= 5 .  50

= 250 

Answer 4

35 . 5 - 15 . (-5)

= 35 . 5 + 15 . 5

= 5 . (35 + 15)

= 5 . 50

= 250

Answer 5

\(35.5-15.\left(-5\right)=5.\left(35+15\right)=5.50=250\)