Chapter 1 Section 1.2 Practice Exercises 1. The place value of the 8 in 38,760,005 is millions. 2. The place value of the 8 in 67,890 is hundreds. 3. The place value of the 8 in 481,922 is tenthousands. 4. 54 is written as fifty-four. 5. 678 is written as six hundred seventy-eight. 6. 93,205 is written as ninety-three thousand, two hundred five. 7. 679,430,105 is written as six hundred seventynine million, four hundred thirty thousand, one hundred five. 8. Thirty-seven in standard form is 37. 9. Two hundred twelve in standard form is 212. 10. Eight thousand, two hundred seventy-four in standard form is 8,274 or 8274. 11. Five million, fifty-seven thousand, twenty-six in standard form is 5,057,026. 12. 4,026,301 = 4,000,000 + 20,000 + 6000 + 300 + 1 13. a. Find Australia in the “Country” column. Read from left to right until the “bronze” column is reached. Australia won 22 bronze medals. b. Find the countries for which the entry in the “Total” column is greater than 60. The United States, China, ROC, and Great Britain won more than 60 medals. Vocabulary, Readiness & Video Check 1.2 1. The numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, ... are called whole numbers. 2. The number 1286 is written in standard form. 3. The number “twenty-one” is written in words. 4. The number 900 + 60 + 5 is written in expanded form. 5. In a whole number, each group of 3 digits is called a period. 6. The place value of the digit 4 in the whole number 264 is ones. 7. hundreds 8. To read (or write) a number, read from left to right. 9. 80,000 10. Dachsund Exercise Set 1.2 2. The place value of the 5 in 905 is ones. 4. The place value of the 5 in 6527 is hundreds. 6. The place value of the 5 in 79,050,000 is tenthousands. 8. The place value of the 5 in 51,682,700 is tenmillions. 10. 316 is written as three hundred sixteen. 12. 5445 is written as five thousand, four hundred forty-five. 14. 42,009 is written as forty-two thousand, nine. 16. 3,204,000 is written as three million, two hundred four thousand. 18. 47,033,107 is written as forty-seven million, thirty-three thousand, one hundred seven. 20. 254 is written as two hundred fifty-four. 22. 105,447 is written as one hundred five thousand, four hundred forty-seven. 24. 1,110,000,000 is written as one billion, one hundred ten million. 26. 11,239 is written as eleven thousand, two hundred thirty-nine. 28. 202,700 is written as two hundred two thousand, seven hundred. 30. Four thousand, four hundred sixty-eight in standard form is 4468.