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प्रश्न
Find the difference between the smallest number of 7 digits and the largest number of 4 digits.
उत्तर
Smallest seven-digit number = 1000000
Largest four-digit number = 9999
∴ Their difference = 1000000 − 9999
=1000000 − 10000 + 1
=1000001 − 10000
=990001
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