Estimate 613 + 284 by first rounding each number to the nearest ten.

To estimate the sum of \(613 + 284\) by rounding each number to the nearest ten:

1. **Round 613 to the nearest ten**:  
   \(613\) rounds to \(610\).

2. **Round 284 to the nearest ten**:  
   \(284\) rounds to \(280\).

3. **Add the rounded numbers**:  
   \(610 + 280 = 890\).

So, the estimated sum is **890**.

Would you like more details on this or have any questions?

Here are five related questions:
1. How would you round \(745\) to the nearest ten?
2. Estimate \(729 + 453\) by rounding each number to the nearest ten.
3. What is the difference between rounding to the nearest ten and the nearest hundred?
4. How does rounding affect the accuracy of an estimation?
5. Can rounding sometimes lead to underestimation or overestimation? Explain.

**Tip:** When rounding numbers, if the digit in the units place is 5 or higher, round up. If it’s 4 or lower, round down.

Learn how to estimate the sum of 613 + 284 by rounding each number to the nearest ten. This problem covers key mathematical concepts such as estimation, rounding numbers, and addition. Suitable for students in Grades 3-5.

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