1. Problem: Round the 2019 Wyoming population of 578,759 to the nearest hundred-thousand. 2. Formula: To round to the nearest hundred-thousand, look at the ten-thousands digit. 3. The number is 578,759. The hundred-thousands digit is 5, the ten-thousands digit is 7. 4. Since the ten-thousands digit (7) is 5 or greater, round the hundred-thousands digit up from 5 to 6. 5. So, 578,759 rounded to the nearest hundred-thousand is 600,000. 6. Answer: C. 600,000 --- 1. Problem: Round the average listing price of $101,700 to the nearest thousand dollars. 2. Formula: To round to the nearest thousand, look at the hundreds digit. 3. The number is 101,700. The thousands digit is 1, the hundreds digit is 7. 4. Since the hundreds digit (7) is 5 or greater, round the thousands digit up from 1 to 2. 5. So, 101,700 rounded to the nearest thousand is 102,000. 6. Answer: B. 102,000 --- 1. Problem: Round the average soil density 0.371 g/cm³ to the nearest tenth. 2. Formula: To round to the nearest tenth, look at the hundredths digit. 3. The number is 0.371. The tenths digit is 3, the hundredths digit is 7. 4. Since the hundredths digit (7) is 5 or greater, round the tenths digit up from 3 to 4. 5. So, 0.371 rounded to the nearest tenth is 0.4 g/cm³. 6. Answer: C. 0.4 g/cm³ --- 1. Problem: Round the average daily temperature 67.28°F to the nearest whole degree. 2. Formula: To round to the nearest whole number, look at the first decimal digit. 3. The number is 67.28. The units digit is 7, the first decimal digit is 2. 4. Since the first decimal digit (2) is less than 5, keep the units digit as is. 5. So, 67.28 rounded to the nearest whole degree is 67°F. 6. Answer: C. 67°F