The estimated difference of 43209 and 3479 by rounding off to the nearest hundred is ________

43209-3479
1. The estimation of 43209 is 43200.
2. The estimation of 3479 is 3000.
3. Then we have to subtract both of them.
43200
- 3000
----------
40200
----------

4. The estimated difference between 43209 and 3479 is 40200

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