Question

An insect is 3.5 millimeters long. Which expression finds the length of the insect in decimeters

Answer 1

As 1 mm = 0.01 dm

3.5 mm = 0.01*3.5 = 0.035 decimeter

Answer 2

The length of the insect in decimeters is 0.035.

Explanation:

Conversion of unit questions can be solved by rule of three.

Each millimeter has 0.01 decimeter. How many decimeters are there in 3.5 millimeters? So:

1 ml - 0.01dm

3.5ml - x dm

`x = 3.5*0.01`

`x = 0.035`

The length of the insect in decimeters is 0.035.