Verified Answer :

The word is CALCULATE. ( to determine or ascertain by mathematical methods; compute

Hmm, puzzle huh? Well 9 empty spots : _ _ _ _ _ _ _ _ _. The definition is : determine (the amount or number of something) mathematically. What do you think it is? Look in the dictionary or look that definition up with the key word in math What do you find? I found the word C a l c u l a t e. Hoped I helped!
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