The two statements that are true about Eli’s work are:
- Eli's answer is incorrect. The correct difference is 124.
- Eli lined up the place values correctly.
Eli's subtraction of 121 from 245 is indeed incorrect as he ended up with 24 instead of the correct difference of 124. However, he properly lined up the numbers by their place values for the subtraction operation.
The statements regarding adding and the correctness of Eli's answer of 24 are false. He should not have added, and his answer is not correct.