Length is how long an object is. The standard form of measuring length is: Kilometers, Meters, Centimeters and Millimeters. Common ways to measure in length would be to use a ruler or meter ruler.
An estimation is to guess the measurement or amount of something. When making an estimation, its also helpful to use prior knowledge. If a person were to know one cube was meter long, and the floor could be covered using 6 cubes, that person would be able to make an estimation on the length of the floor.
When converting centimeters to millimeters, the numbers multiply by ten. When converting centimeters to meters, the numbers divide by one hundred.
LI: to explore the standard forms of measurement.
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