Estimate the sum by rounding each number to the nearest hundred thousand and then adding.353,766 + 775,539The sum is approximately .
Question
Estimate the sum by rounding each number to the nearest hundred thousand and then adding.353,766 + 775,539The sum is approximately .
Solution
Step 1: Round each number to the nearest hundred thousand.
353,766 rounds down to 300,000 because it is closer to 300,000 than 400,000.
775,539 rounds up to 800,000 because it is closer to 800,000 than 700,000.
Step 2: Add the rounded numbers together.
300,000 + 800,000 = 1,100,000
So, the sum of 353,766 and 775,539, when both numbers are rounded to the nearest hundred thousand, is approximately 1,100,000.
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