Final answer:
To estimate 4490-2949 by rounding each number to the nearest hundred, round 4490 to 4500 and 2949 to 2900. Then subtract to find the estimated difference of 1600.
Step-by-step explanation:
To estimate 4490-2949 by rounding each number to the nearest hundred, we need to look at the hundreds place for each number. 4490 rounds to 4500 and 2949 rounds to 2900. Now we can subtract: 4500 - 2900 = 1600. Therefore, the estimated difference is 1600.
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