Question

Using the same umbers 1-9 only once what is the greatest sum of two numbers​

Answer 1

9+8=17 so the answer is 17

Answer 2

17

Explanation:

1, 2, 3, 4, 5, 6, 7, 8, 9

Which two of the above numbers added together would have the largest sum?

8 + 9 = 17

Any other combination of two numbers would result in a lesser sum.