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Finding the Sum of 798 and 229 Using Expanded Form

This lesson demonstrates how to find the sum of 798 and 229 using expanded form. The process is broken down into four clear steps. First, the numbers are rewritten in expanded form: 798 as 700 + 90 + 8 and 229 as 200 + 20 + 9. Next, place the addends vertically, aligning their place values to facilitate column addition. After calculating the sums for each column, rewrite the expanded form by combining common place values. Finally, the result is presented in standard form as 1,027.

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Finding the Sum of 798 and 229 Using Expanded Form

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  1. 3-3 Lesson 3-3 Example 4 Find the sum of 798 and 229 using expanded form. Step 1 Rewrite the addends in expanded form. 700 + 90 + 8and 200 + 20 + 9

  2. 3-3 Lesson 3-3 Example 4 Find the sum of 798 and 229 using expanded form. Step 2 Place the addends vertically, lining up place values. Find the sum of each column. 700 + 90 + 8+200 + 20 + 9 900 + 110 + 17

  3. 3-3 Lesson 3-3 Example 4 Find the sum of 798 and 229 using expanded form. Step 3 Rewrite the expanded form. Combine common place values. 900 + 110 + 17 900 + 100 + 10 + 10 + 7 = 1,000 + 20 + 7

  4. 3-3 Lesson 3-3 Example 4 Find the sum of 798 and 229 using expanded form. Step 4 Write the number in standard form. 1,027

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