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3-8. Lesson 3-8 Example 3. Find the difference of 57,345 and 11,198. Use expanded form. Step 1 What is the greatest place value of the numbers?. ten thousands. 3-8. Lesson 3-8 Example 3. Find the difference of 57,345 and 11,198. Use expanded form.
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3-8 Lesson 3-8 Example 3 Find the difference of 57,345 and 11,198. Use expanded form. Step 1 What is the greatest place value of the numbers? ten thousands
3-8 Lesson 3-8 Example 3 Find the difference of 57,345 and 11,198. Use expanded form. Step 2 Round the numbers to the greatest place value. 60,000 and 10,000
3-8 Lesson 3-8 Example 3 Find the difference of 57,345 and 11,198. Use expanded form. Step 3 Estimate the difference. 60,000 – 10,000 = 50,000
3-8 Lesson 3-8 Example 3 Find the difference of 57,345 and 11,198. Use expanded form. Step 4 Write the numbers in expanded form. 50,000 + 7,000 + 300 + 40 + 5− (10,000 + 1,000 + 100 + 90 + 8)
3-8 Lesson 3-8 Example 3 Find the difference of 57,345 and 11,198. Use expanded form. Step 5 Regroup. 50,000 + 7,000 + 200 + 130 + 15− (10,000 + 1,000 + 100 + 90 + 8)
3-8 Lesson 3-8 Example 3 Find the difference of 57,345 and 11,198. Use expanded form. Step 6 Subtract the columns and write the difference in standard form. 50,000 + 7,000 + 200 + 130 + 15− (10,000 + 1,000 + 100 + 90 + 8) 40,000 + 6,000 + 100 + 40 + 7 = 46,147
3-8 Lesson 3-8 Example 3 Find the difference of 57,345 and 11,198. Use expanded form. Step 7 Compare your answer to the estimate. 46,157is close to the estimate, 50,000, so it is reasonable.