The number 9.9 is larger than 9.11.

Even though 9.11 appears to have more digits, when comparing decimal numbers, the comparison is done digit by digit from left to right. After the decimal point:

• 9.9 is equivalent to 9.90 when extended to the same number of decimal places.
• 9.90 is greater than 9.11.

So, 9.9 is bigger.

Would you like further clarification or details on this? Here are some related questions to explore:

1. How do you compare decimal numbers?
2. What is the place value of digits after the decimal point?
3. Can a number with more digits after the decimal be smaller?
4. How do you round decimal numbers for comparison?
5. How do decimals compare to fractions?

Tip: When comparing decimals, always line up the numbers by their decimal points and compare digits one by one from left to right.