In a week Karry ran 9.3 miles and Triciaran 4.4 miles. Use mental math tofind how much farther Karry ran thanTricia. Explain how you determined the difference.
Karry ran 4.9 miles more than Triciaran. When subtracting 4.4 from 9.3 you should borrow one from the 9 so it becomes 13 - 4 and 8 - 4. i hope this makes sense
