Is 1 decimeter less or greater than 100 milliliters?

Answer 1

meter = length.

liter = volume.

Assuming you mean

1 deciliter / 100 milliliters

or

1 decimeter / 100 millimiteres

deci means 10 times

milli means one-thousandth, or 10-3

1 deci- means 1 x 10 or 10.

100 milli means 100 x 10-3 or 0.1

So the deci (meter/liter) will be larger of the two.