SOLUTION: What is the minimum and maximum nuber of digits in the sum of any two four-digit numbers?

Question 447416: What is the minimum and maximum nuber of digits in the sum of any two four-digit numbers?
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!
What is the minimum and maximum nuber of digits in the sum of any two four-digit numbers?

The minimum number is when we add the least two four
digit numbers

 1000
+1000
-----
 2000

That has four digits, so 4 is the minimum number of 
digits it can have.

--------------------------------------

The maximum number is when we add the greatest two 
four digit numbers

 9999
+9999
-----
19998

That has five digits, so 5 is the maximum number of 
digits it can have.

Edwin

RELATED QUESTIONS
The tens digit of a 2-digit nuber is twice the units digit. The sum of the digits is 12.... (answered by sudhanshu_kmr)

the sum of the digits of a two-digit prime number is subtracted from the number. Prove... (answered by solver91311)

Consider all four-digit numbers that can be formed each time taking the 4 digits of 2014. (answered by Edwin McCravy)

What is the sum of the digits of the four-digit numbers formed using the digits... (answered by khwang,trip.3c)

What is the sum of all the four-digit numbers whose digits are permutations 1,2,3, and... (answered by stanbon)

i am a four-digit number with 6 hundreds and 5 ones. the sum of all my digits is 15. what (answered by Alan3354)

In a 4 digit number, the first two digits are both 2. The sum of the ones and tens digits (answered by solver91311)

In a four digit number, the sum of the thousands and the hundreds digits is 3. The tens... (answered by ankor@dixie-net.com)

my tens digit is two more than my ones digit and four less than my hundreds digit the sum (answered by josgarithmetic)