Question

b) b) 75=9 I will create two two-digit numbers from the digits 1, 2, 4 and 5 so that their sum is a) as large as possible, b) as small as possible. I will use each digit only once in the task. I am looking for different solutions. a

Answer 1

To create the largest possible sum, we should arrange the numbers in descending order.

One possible solution is:
54 + 21 = 75

To create the smallest possible sum, we should arrange the numbers in ascending order.

One possible solution is:
12 + 45 = 57