An insect is 3.5 millimeters long. Which expression finds the length of the insect in decimeters? Use the metric table to help answer the question.

Question

Metric Table
kilo-
hecto-
deka-
unit
deci-
centi-
milli-
1,000
100
10
1
0.1
0.01
0.001
3.5 times 100
3.5 divided by 100
3.5 divided by 10
3.5 times 10

Answer 1

To convert millimeters to decimeters, we need to understand the relationship between these units:

• 1 decimeter (dm) = 100 millimeters (mm)

To find the length of the insect in decimeters (dm), we can set up the conversion using division:

\[ \text{Length in dm} = \text{Length in mm} \div 100 \]

Given that the insect is 3.5 millimeters long, the expression to use is:

\[ 3.5 \div 100 \]

So the correct choice from your options is 3.5 divided by 100.