Question

. Find the sum of greatest 3-digit number and smallest 4-digit number
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Answer 1

6 in ones unit, 5 in tens, 4 in hundreds and 3 in thousands. The largest 4 digit number is 999 and the smallets is 1000. There the sum of the smallest 4-digit number and greatest 3-digit number is 1999.

Answer 2

6 in ones unit, 5 in tens, 4 in hundreds and 3 in thousands. The largest 4 digit number is 999 and the smallets is 1000. There the sum of the smallest 4-digit number and greatest 3-digit number is 1999.