Final answer:
When 44,000 is multiplied by 10, we get 440,000, which contains 440 thousands. The correct answer to the question is in the 'Tens of thousands' range.
Step-by-step explanation:
To answer the question (4 ten thousands 4 thousands) x 10, we first need to understand that 4 ten thousands means 40,000 and 4 thousands means 4,000. Adding these together gives us 44,000. When we multiply 44,000 by 10, we get 440,000.
Now, to determine the number of thousands in the answer, we simply count the number of thousands in 440,000. There are 440 thousands in 440,000. Therefore, the correct answer is d) Tens of thousands, since the result is in the tens of thousands range.