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## Scientific Notation

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**Scientific Notation**• Represent very large or very small numbers using powers of ten**Practice**• 5,000 • 0.000265 • 3,510,000,000 • 0.00000071**3.0 x 10-5**• 4.13 x 104 • 9.29 x 102**Dimensional Analysis**• How do I get from one unit to another? • Set up a conversion factor • Ex: 1 foot = 12 inches or 3 ft = 1 yd**Metric Conversions**• Kilo Hecta Deca BaseUnit Deci Centi Milli • How many kilometers is 1,500,000 m? • How many cg in 550 dag? • How many kL in 9,256 mL?**Convert:**• 356 m to km • 2.5 x 10-3 g to mg • 30,050 mL to kL**Practice**• I want to buy apples. They cost 2.59 per pound. My bag of apples weighs 2.3 pounds. How much will it cost? • 1 pound = $2.59**How many feet are there in the 100 m dash?**• How many minutes are there in one week? • How many meters is a 100 yard football field?