Question

Find the sum of 15 and the difference between 9 and 5 step by step​

Answer 1

Sum of 15 and 5 is 20

Difference between 9 and 5 is 4

Explanation:

Answer 2

15 + 4 = 19 or 15 - 4 = 11

Explanation:

Sum of 15 are: 6 and 9, 7 and 8, 8 and 7, 9 and 6

9+6 = 15

8+7 = 15

The difference between 9 and 5 is 4.

9-5 = 4

5-9 = -4

In all

15 + 4 = 19 or 15 - 4 = 11