Question: Estimate the sum or difference by rounding each number to the nearest hundred 1. 3785 +648+ 2866 2. 5925 - 1787 3. A group of

Estimate the sum or difference by rounding each number to the nearest hundred
1. 3785 +648+ 2866
2. 5925 - 1787
3. A group of students took a week-long driving trip and traveled 630, 192, 271, 56, 703, 454, and 329 miles on seven consecutive days. Round each distance to the nearest hundred to estimate the distance they traveled.
4. In 2012, the population of Europe was 820,918,446 while the population of Latin America/Caribbean was 593,688,638. Round each number to the nearest million, and estimate their difference in population in 2012.

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