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Adding Numbers Using Expanded Form

Learn how to find the sum of numbers by breaking them down into expanded form and adding the place values. Practice with the example of adding 311 and 452 step by step.

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Adding Numbers Using Expanded Form

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  1. 3-1 Example 2 Lesson 3-1 Example 2 Find the sum of 311 and 452 using expanded form. 1.Write the first number in expanded form. 300 + 10 + 1

  2. 3-1 Example 2 Lesson 3-1 Example 2 Find the sum of 311 and 452 using expanded form. 2.Write the second number in expanded form. 400 + 50 + 2

  3. 3-1 Example 2 Lesson 3-1 Example 2 Find the sum of 311 and 452 using expanded form. 3.Put the numbers in vertical format. Align the numbers in each place value. Find the sum of each column. 300 + 10 + 1 400 + 50 + 2 700 + 60 + 3

  4. 3-1 Example 2 Lesson 3-1 Example 2 Find the sum of 311 and 452 using expanded form. 4.Write the expanded form of the number in standard form. 700 + 60 + 3 = 763

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