Using the technique of front-end estimation, find an approximate value for each of the following. $$ \begin{array}{ll} ext { (a) } 464+333 & ext { (b) } 645+178 \ ext { (c) } 551-323 & ext { (d) } 772-393\end{array} $$ $$ \begin{array}{l} ext { (a) } 464+333 \approx \square\end{array} $$ (Round to the nearest hundred as needed.)

Question

Using the technique of front-end estimation, find an approximate value for each of the following. $$ \begin{array}{ll}	ext { (a) } 464+333 & 	ext { (b) } 645+178 \ 	ext { (c) } 551-323 & 	ext { (d) } 772-393\end{array} $$ $$ \begin{array}{l}	ext { (a) } 464+333 \approx \square\end{array} $$ (Round to the nearest hundred as needed.)

UpStudy AI · Accepted Answer

**(a) $$464+333$$**  
1. Round $$464$$ to the nearest hundred. Since the tens digit is 6 (and $$64 \geq 50$$), round up:  
   $$
   464 \approx 500
   $$
2. Round $$333$$ to the nearest hundred. Since the tens digit is 3 (and $$33 < 50$$), round down:  
   $$
   333 \approx 300
   $$
3. Add the rounded numbers:  
   $$
   500 + 300 = 800
   $$
Thus,  
$$
464+333 \approx 800
$$
$$464 + 333 \approx 800$$

Using the technique of front-end estimation, find an approximate value for each of the following.

(Round to the nearest hundred as needed.)

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Using the technique of front-end estimation, find an approximate value for each of the following. (Round to the nearest hundred as needed.)