Exactly 1 kilogram
What metric unit would you use to measure a computer keyboard
You would use kilograms (kg) to measure someone's mass in metric units.
38 oz is approximately 1.1 kilograms in metric units.
Gallons (standard) or liters (metric).
You would have to convert the units to be alike, then you would be able to add and subtract them.
A ruler
Celsius degrees
Non-metric is inches. I'd assume metric would be centimeters.
It would probably be miles.
meter
Litres
What is the metric unit for liquid volume of a sink