Round each number to the nearest tenth. what is the best estimate for the answer to 471.41 – 397.46? a. 70 b. 73.9 c. 74 d. 74.9
plz quick!

Answer choice: [B] or [C]; could be considered correct; depending on the perspective (explained below).  
      Personally, I would go with: Answer choice: [C]: "74" ;  because:
       
         1)  It's an easier number to "work with" than "Answer choice: [B]:                        "73.9" ;  and:
         2)  The question asks to "estimate the answer".

One interpretation would be:

Consider the math problem given:

   "  471.41 – 397.46  = ? " ; 

And round each of THESE values to the nearest TENTH:

      471.4 – 397.5 = 73.9 ;  this  "73.9" ; is already rounded to the nearest "tenth"; and does correspond with answer choice: [B].

Yet, answer interpretation of this math problem, would be:

     Given:  "471.41 – 397.46 = ??  " ;  
 
Solve this problem as it is; and round the actual answer obtained to the nearest "tenth":

Doing so, we get:

            "471.41 – 397.46 = 73.95 ."   This value, rounded to the nearest "tenth", would be: "74.0" (which is not an answer choice, technically speaking); or "74" (because, in "mathematics", "74.0 = 74"; and we are asked in the problem to "estimate for the answer",  so the answer would be:
   Answer choice:  [C]:  74 .

 So, answer choice: [B] or [C]; could be considered correct; depending on the perspective.  Personally, I would go with: Answer choice: [C]: "74";  because:
         1)  It's an easier number to "work with" than "Answer choice: [B]: 73.9" ;
and:  2)  The question asks to "estimate the answer".

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