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Lesson 3-4 Example 4

3-4. Lesson 3-4 Example 4. Solve. CARS Four different cars and trucks weigh 2,474, 4,440, 3,553, and 3,965 pounds. About how much is the combined weight of the vehicles?. Understand Read the problem. Write what you know. The vehicles weigh 2,474 , 4,440 , 3,553, and 3,965 pounds.

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Lesson 3-4 Example 4

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  1. 3-4 Lesson 3-4 Example 4 Solve. CARS Four different cars and trucks weigh 2,474, 4,440, 3,553, and 3,965 pounds. About how much is the combined weight of the vehicles? Understand Read the problem. Write what you know. The vehicles weigh 2,474, 4,440, 3,553, and 3,965pounds. The problem is asking for an estimate.

  2. 3-4 Lesson 3-4 Example 4 Plan Pick a strategy. One strategy is to solve a simpler problem. Round the weights to the thousandsplace value.

  3. 3-4 Lesson 3-4 Example 4 Solve Car 12,000 pounds Car 24,000 pounds Car 34,000 pounds Car 44,000 pounds Add the estimates. 2 + 4 + 4 + 4 = 14 So 2,000 + 4,000 + 4,000 + 4,000 = 14,000. The approximate weight of the cars is14,000pounds.

  4. 3-4 Lesson 3-4 Example 4 Check You can check your estimate by finding the actual sum of the weights of the cars? Is your answer close to your estimate?

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