Question

What is `15 -:(2^2 - (2-1)) -12 -: 4`?

Answer 1

`15-:(2^2-(2-1))-12-:4=2`

Explanation:

`15-:(2^2-(2-1))-12-:4`

= `15-:(4-1)-12-:4`

= `15-:3-12-:4`

= `5-3`

= `2`