A plant grows 3 centimeters in 10 days. How much does it grow per day?

3.3 (3333333) per day

3 centimeters is the same as 30 millimeters, because there is 10 millimeters in every centimeter. in order to figure out how much the plant grew, you divide 3 centimeters by ten, or 30 millimeters by 10, which is easier.

30 divided by 10 is 3, so the plant grew 3 millimeters every day.