Final answer:
The correct order of the numbers 8.15, 8.04, and 8.009 from least to greatest is 8.009, 8.04, 8.15.
Step-by-step explanation:
The correct order of the given numbers from least to greatest is option 1) 8.009, 8.04, 8.15.
This is determined by comparing the numbers in each decimal place. In the tenths place, each number has an 8. However, in the hundredths place, 8.009 has a 0, 8.04 has a 4, and 8.15 has a 1. Since 0 is less than 1 and 4, 8.009 is the least number. By the same logic, comparing the hundredths place in 8.04 and 8.15, 4 is less than 5, so 8.04 should come next. Therefore, 8.15 is the greatest number.
Learn more about Ordering Decimal Numbers