Wednesday, March 7, 2012

Math notes

Converting in the Metric System
·       The metric system is based on BASE TEN units.
·       Conversions
o   1 meter = 1000 millimeters
§  Millimeters are the smallest metric unit
o   1 meter = 100 centimeters
§  Cent (Root word) means 100.  Think 100 cents in a dollar, 100 years in a century
o   1 kilometer = 1,000 meters
§  Kilo means 1,000
§  It’s the biggest metric unit
·       How to convert:  BIG TO SMALL-Multiply them all!!!
Small to Big, Divide that pig!!!
·       **BIGGER unit to SMALLER unit = MULTIPLY** (move the decimal to the RIGHT)
o   Meters to CM:  multiply x 100
§  From a bigger unit to a smaller unit, the number will get a lot bigger!
§  5 meters = 500 cm
o   Meters to MM:  multiply x 1,000
§  5 meters = 5,000 mm
o   Kilometers to Meters:  multiply x 1,000
·       **SMALLER unit to BIGGER unit = DIVIDE (move the decimal place to the LEFT)
·       CM to M:  divide by 100
o   700 cm = ?  M
§  700cm ÷ 100 = 7 meters
·       MM to M:  divide by 1000
o   16,000mm = ? M
§  16,000 ÷ 1,000 = 16 Meters
·       M to KM:  Divide by 1000
o   84,000 Meters = ? KM
§  84,000 ÷ 1,000 = 84 KM

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Ms. Serafin in Kenya

Ms. Serafin in Kenya