Increase the smallest four-digit number by 9 times and decrease the result by 100 times.

1. The smallest four-digit number is 1000. Then we increase this number by 9 times, we get:
1000 * 9 = 9000.
2. Now let’s reduce the result by 100 times, for this we divide 9000 by 100, we get:
9000/100 = 90.
Answer: as a result of calculations, we got 90.



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