Estimate to Solve Word Problems

The diameter of the moon (distance through the middle) is 2,159 miles long. The diameter of the Earth is 7,917 miles long. Round these numbers off to the nearest hundred. Then find out about how much larger the diameter of the Earth is compared to the moon.

The Schmitt family wants to purchase 2 new cars. One car costs $36,215. The other car costs $29,875. Round these numbers to the nearest ten thousand to estimate about how much total money the Schmitt family needs.

There were 2 home games of soccer played in a stadium. 44,872 fans attended the first game. 56,112 fans attended the second game. Round these numbers off to the nearest ten thousand, then estimate how many more fans attended the second game than the first game.

Round the numbers off to the nearest thousand to estimate how many total miles he flew in 4 days.

Round the numbers off to the nearest thousand, then estimate about how many more miles he traveled on Thursday than on Monday.

Three students kept track of how many pages they read in their chapter books. Nick read 432 pages, Steven read 613 pages, and Thomas read 557 pages. About how many pages did they read in all?

Zookeepers were conducting their annual physical of their giraffes. The male giraffe weighed 2,675 pounds. The female weighed 1,778 pounds. Round these numbers to the nearest hundred to find out about how much more the male giraffe weighed than the female giraffe.

Mrs. Zhang’s odometer on her car shows that 67,815 miles have been driven. Mr. Zhang’s truck odometer shows that 83,107 miles have been driven. Frank rounded the numbers off to the nearest thousand to estimate how many miles they had driven altogether. He says the answer is 150,000 miles. Is he correct?

The distance from Houston, Texas to San Francisco, California is 1,926 miles. The distance from Houston, Texas to Nome, Alaska is 3,788 miles. Round the numbers off to the nearest hundred to find out about how much farther it is from Houston to Nome than to San Francisco.

A grocery store ordered 455 cans of tomato soup and 318 cans of chicken noodle soup. Round the numbers off to the nearest hundred. About how many more cans of tomato soup did they order than chicken noodle soup?