Section 1.1 Introduction to Whole Numbers 3 Determining Place Value Example 2 Mount Everest, the highest mountain on Earth, is 29,035 feet (ft) tall. Give the place value for each digit. Solution: ones tens hundreds thousands ten-thousands 29,035 2. Standard Notation and Expanded Notation A number can also be written in an expanded form by writing each digit with its place value unit. For example, 287 can be written as 287 2 hundreds 8 tens 7 ones 2 100 8 10 7 1 200 80 7 This is called expanded form. Converting Standard Form to Expanded Form Example 3 Convert to expanded form. a. 4,672 b. 257,016 Solution: a. 4,672 b. 257,016 4 thousands 6 hundreds 7 tens 2 ones 4 1,000 6 100 7 10 2 1 4,000 600 70 2 2 hundred-thousands 5 ten-thousands 7 thousands 1 ten 6 ones 2 100,000 5 10,000 7 1,000 1 10 6 1 200,000 50,000 7,000 10 6 Skill Practice 5. Alaska is the largest state geographically. Its land area is 571,962 square miles Give the place value 1mi22. for each digit. Skill Practice Convert to expanded form. 6. 837 7. 4,093,062 Answers 5. 5: hundred-thousands 7: ten-thousands 1: thousands 9: hundreds 6: tens 2:ones 6. ; 7. 8 hundreds 3 tens 7 ones 8 100 3 10 7 1 4 millions9 ten-thousands 3 thousands 6 tens 2 ones ; 4 1,000,000 9 10,000 3 1,000 6 10 2 1
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