Answer:
Option 3 - 45 tens
Step-by-step explanation:
Given : Expression 45 ones times 10.
To find : What is the expression?
Solution :
We know that,
"one" means " 1
We have 45 ones means multiply 45 by 1.

Now, 45 ones times 10 means

450 means 45 tens as tens is 10.
So, The correct choice is 45 tens.
Therefore, Option 3 is correct.