How do you add and subtract with the metric system?

Answer 1

use the metric conversion ladder

kilo 1,000 units

hecto 100 units

deca 10 units

base unit 1 unit

deci .1 units

centi .01 units

milli .001 units

Answer 2

To add and subtract with the metric system, make sure the units of measurement are the same (e.g. grams with grams, meters with meters). Then, simply add or subtract the numerical values. If needed, convert between different metric units before performing the operation.

Answer 3

55 3/16-15 5/8