on each of three days Derek Road 6.45 kilometres of school to school a hundred and fifty metres to the library and then 500 meters back home how many kilometers did he ride for the three days all together
Since 1 kilometer is equal to 1000 meters, Derek road 7 kilometers everyday. For a all 3 days, you would do 7 x 3 which is 21. In 3 days, Derek road 21 kilometers.
