Final answer:
The number between 200 and 300 with a 5 in the ones place and a 4 in the tens place is 245. This is determined by the place value system where each position in a number (ones, tens, hundreds, etc.) has a unique value.
Step-by-step explanation:
The question involves understanding the place value of digits in numbers to determine a number that fits the given criteria. The student is looking for a number between 200 and 300 that has a 5 in the ones place and a 4 in the tens place. To solve this, we know the hundreds place must be '2' to keep our number between 200 and 300. The tens place must be '4', as specified. Lastly, the ones place is '5'. Therefore, the number fitting these conditions is 245. Remember, the value of a digit is determined by its position in the number. For instance, in the number 231.45, the digit '2' is in the hundreds place and represents 200, which is different from the digit '2' being in the tens or ones position.