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An easy way to work with the metric system is to build yourself a table, and eventually memorize the places on that table. The units of the table are usually as such:

Kilo | Hecto | Deka | Meter/Liter/Gram | Deci | Centi | Milli

Try to remember the values of the table; kilo is one-thousandth of your base unit, whereas centi is one hundred of your base unit.

This table is very helpful, because as you move across it you can simply shift the decimal left or right as you move toward the desired unit.

So, if you have 678,000 centimeters, you can move the decimal 5 places to the left; this is the same as moving across the table, or multiplying by 0.00001.

Your answer: 678,000 cm = 6.78 km

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15y ago

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Q: Convert 678000 cm equals km
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