using 4 different digits, what is the least sum you can get ehrn you add two 2-digit numbers?
10+23=33
10 + 23
To find the least sum when adding two 2-digit numbers using 4 different digits, we need to consider the possible combinations with the smallest digits first.
Let's start by choosing the smallest digit, which is 0. This digit cannot be used as the first digit in a 2-digit number, so we can place it as the second digit.
Next, we can choose the second smallest digit, which is 1. This digit can be used as the first digit in both numbers.
Now, let's find the remaining two digits. We will choose the third smallest digit, which is 2, and the fourth smallest digit, which is 3. These digits can be used as the second digit in each number.
So, by using the digits 0, 1, 2, and 3, we can form two 2-digit numbers: 10 and 23.
Now, let's add these two numbers together:
10
+ 23
------
33
Therefore, the least sum we can get when adding two 2-digit numbers using 4 different digits is 33.