Exactly 1 kilogram
What metric unit would you use to measure a computer keyboard
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.
1.077 kilograms
A ruler
meters
Kilograms
In SI units, it would be Liters. In Imperial units, it would be Gallons.
"Mi" probably stands for "miles," which are not metric units; if it were "m" it would stand for "meters," which are.
Non-metric is inches. I'd assume metric would be centimeters.
Litres
meter