Convert 64 mm to km
Understand the Problem
The question asks to convert a length measurement from millimeters (mm) to kilometers (km). This involves understanding the relationship between these two units in the metric system.
Answer
$3.448904$ km
Answer for screen readers
$3.448904$ km
Steps to Solve
- Convert mm to meters (m)
Since 1 meter is equal to 1000 millimeters, divide the given value in millimeters by 1000 to convert it to meters.
$$3448904 \text{ mm} \div 1000 = 3448.904 \text{ m}$$
- Convert meters (m) to kilometers (km)
Since 1 kilometer is equal to 1000 meters, divide the value in meters by 1000 to convert it to kilometers.
$$3448.904 \text{ m} \div 1000 = 3.448904 \text{ km}$$
$3.448904$ km
More Information
The metric system is a decimal system, which makes conversions between units straightforward since they are all powers of 10.
Tips
A common mistake is either multiplying by 1000 instead of dividing, or mixing up the conversion factors. Remember that kilometers are much larger than millimeters, so your final answer in kilometers should be a smaller number than the original value in millimeters. Also, it is a common mistake to try to convert millimeters to kilometers in one step without converting to meters first. This can be done, but it is more error prone, since it requires knowing that $1 \text{ km} = 1,000,000 \text{ mm}$.
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