Final answer:
To find four-digit numbers that, when divided by 10, leave a remainder of 9, look for numbers that end with the digit 9.
Step-by-step explanation:
To find four-digit numbers that, when divided by 10, leave a remainder of 9, we need to look for numbers that end with the digit 9. Since we want four-digit numbers, the thousands place can be any digit from 1 to 9. The hundreds place, tens place, and units place can take any digit from 0 to 9.
Here are some examples:
- 1099, when divided by 10, leaves a remainder of 9
- 2199, when divided by 10, leaves a remainder of 9
- 3299, when divided by 10, leaves a remainder of 9
- 4399, when divided by 10, leaves a remainder of 9
- 5499, when divided by 10, leaves a remainder of 9