Monday 23456, distance (km) 573584 10 (2). The farthest distance to run is Sunday, and the least is Wednesday. It is estimated that Grandpa Zhou runs an average of 5 to 7 kilometers every day.
(3)(5+7+3+5+8+4+ 10)÷7
=42÷7
=6 km
A: Grandpa Zhou actually runs 6 kilometers a day on average.
(4) Run more than average on Tuesday, Friday and Sunday, and less than average on Monday, Wednesday, Thursday and Saturday.
(5) Because 1 month is 3 1 day.
6×3 1= 186 km
A: Grandpa Zhou can run 186 kilometers in January.
So the answers are: 5, 7, 3, 5, 8, 4, 10, day, 3, 5, 7, 6, 2, 5, day, 1, 3, 4, 6, 186.