364 plus 519 round each number the greatest place value to estimate the sum of:

I'd round 364 to 400

I'd round 519 to 500

900

Right.

My bulldozer says to round

364 to 400 and 519 to 500 and add them and get 900.

To estimate the sum of 364 and 519 by rounding to the greatest place value, follow these steps:

1. Look at the place value you want to round to. In this case, we want to round to the greatest place value, which is the hundreds place.

2. Find the digit in the next smaller place value. In this case, it is the tens place. The digit in the tens place of 364 is 6, and the digit in the tens place of 519 is 1.

3. If the digit in the next smaller place value is 5 or greater, round the digit in the place value you're interested in up by one.

4. If the digit in the next smaller place value is 4 or less, keep the digit in the place value you're interested in the same.

5. Round both numbers to the greatest place value. For 364, the hundreds digit remains the same since the digit in the tens place is less than 5. So, 364 rounded to the hundreds place is also 300.

6. For 519, the hundreds digit increases by one since the digit in the tens place is 5 or greater. So, 519 rounded to the hundreds place is 500.

7. Now, add the rounded numbers together: 300 + 500 = 800.

Therefore, when you round each number to the greatest place value, the estimated sum of 364 and 519 is 800.