The steps for a car.
- Fill your car to a full tank of gas
- Write down how many miles your car has driven. (From the odometer)
- Drive until it is time to fill up again
- Write, for a second time how many miles your car has driven. (From the odometer)
- Fill your car up with gas.
- Write down how many gallons of gas was used.
- Subtract the start miles from the end miles.
- Divide that number from the gallons of gas used
Check your work here.