how many numbers are with axactiy 3_digits
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Step-by-step explanation:
Arranging them in ascending order, we see that 100 is the first 3-digit number. How many 3-digit numbers are there? Hence, there can be 9 digits in the hundreds place. Thus, there are 9×10×10=900 9 × 10 × 10 = 900 three digit numbers in all.
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