The readings on Thursday and Wednesday are the same, which means Thursday is closed.
How many kilometers a day? First of all, subtracting 3 kilometers on Monday is 30 1-3=298 kilometers. I ran 298 kilometers on Monday.
Tuesdays 613-301= 312km. On Tuesday, I ran 3 12 kilometers.
On Wednesday, 920-6 13=307 kilometers, and on Wednesday, it ran 307 kilometers.
The odometer reading on Thursday is still 920, which means we have a rest and don't need to calculate.
Friday, 12 18-920 = 298km. I ran 298 kilometers on Friday.
Saturday1509-1218 = 291km. On Saturday, I ran 29 1 km.
Sunday1851-1509 = 342km. On Sunday, Xiao Qiang's parents ran 342 kilometers. Dad and dad read books every day for a week.
Monday Tuesday Wednesday Thursday Friday Saturday Sunday
298 km 3 12 km 307 km 0 km 298 km 29 1 km 342 km