arithmetic operation

[sitifan]

Of course, a calculator can be used for any arithmetic operation, and we advise you to do so. (My bold.)
Source: Source: Rice & Strange, Algebra and Trigonometry, 3rd Edition, page 3.
In the above quotation, which is the correct pronunciation of 'arithmetic', /əˈrɪθ·məˌtɪk/ or /ˌær.ɪθˈmet.ɪk/?

 

[5jj]

/ˌærɪθˈmetɪk/

 

[teechar]

Of course, you can use a calculator can be used for any arithmetic operation, and we advise you to do so.

Note that this would be a better way of phrasing that sentence.