Answer:
15
Explanation:
Okay so I do this kind of weird so it might be a little confusing
What's easier for me is this.. 125 * 10 is 1250
Now there is 625 left to the problem is 625/125
Then I do 125 + 125 + 125 + 125 + 125 (Adding it 5 times so that I can see when it hits 625 is easier than dividing for me)
So you take the 10 from the first part and the 5 from the second part (Got the 5 because you added it 5 times)
10 + 5 is 15