Converting Units of Length (Metric) for 4th Grade
Metric length units scale by powers of ten, so converting means moving the decimal point rather than multiplying awkward numbers. The prefixes tell you how far. The examples below cover millimeters through kilometers, with practice problems and answers.
DETAILED EXPLANATION
Metric units of length include millimeters (mm), centimeters (cm), meters (m), kilometers (km). 10 mm = 1 cm; 100 cm = 1 m; 1,000 m = 1 km.
WORKED EXAMPLES WITH STEP BY STEP SOLUTIONS
Example 1
How many centimeters are in 2 meters?
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Solutions:
Step 1: Apply the concept from the lesson above.
Step 2: Carry out the operation or reasoning.
Answer: 2 m × 100 cm/m = 200 cm.
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