Question

Simplify 81.56 + n - 2.55.

Answer 1

81.56 - 2.55 + n

79.01 + n... is your answer cause you cannot simplify it further.

Answer 2

`79.01 + n`

Explanation:

we have

`81.56 + n - 2.55`

Group terms

`(81.56-2.55) + n`

remember that

`(81.56-2.55)=(81+0.56)-(2+0.55)`

`=(81-2)+(0.56-0.55)`

`=79+0.01`

`=79.01`

substitute in the expression

`79.01 + n`