Answer:
_00 x 10 = _000 (100 x 10 = 1000 basically).
40 x 100 = 4000
so..
40 hundreds is the same as 4 thousands.
The answer is 40. If you divide 4000 by 100 you get 40. Hopefully this is what you were looking for.
Explanation:
4000/100=40
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