metric conversions drul method. warm-up: writing metric terms list as many rules for writing metric...
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Metric Conversions DRUL Method
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Warm-up: Writing Metric Terms
• List as many rules for writing metric rules as you can think of in your notebook
• Come up to the board and list your answers. If your answer is the same as another student’s place a check mark next to their answer.
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Rules for writing metric terms:• Square the actual unit, not the measurement.
• Use a 0 in front of the decimal point
• Use a space between number and unit symbol
• Don’t use plurals
• No Fractions always decimals
• When moving up go to the left and when moving down go to the right .
• No periods at the end of a measurement
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Metric System
• Standard measurement system used in almost all countries and in science
• Easy to convert measurements
• Based on powers of ten
• Convert by moving the decimal point (NO FRACTIONS!)
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Units of Measurement
Unit Symbol What it Measures
Meter m length
Gram g weight
Liter L volume
Celsius C temperature
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10 mm = 1 cm
Millimeter is smaller; centimeters are larger.
Equals
• 3 cm = ____ mm
• 20 mm = ____ cm
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Metric AbbreviationsWrite the correct abbreviation for each metric unit.
1) Kilogram = _____ 4) Milliliter =_____ 7) Kilometer =_____
2) Meter = ___ 5) Millimeter = ___ 8) Centimeter =_____
3) Gram =____ 6) Liter = _____ 9) Milligram =_____
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KILO1000Units
HECTO100
Units
DEKA10
UnitsDECI
0.1Unit
CENTI0.01Unit
MILLI0.001Unit
MetersLitersGrams
DRUL Method12
3
Up to the Left
Down to the Right
Kilo Hecto Deka OVER Deci Centi Milli
Kids Have Dropped OVER Dead Converting Metrics
King Henry Does OVER Drink Chocolate Milk
Equals
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KILO1000Units
HECTO100
Units
DEKA10
UnitsDECI
0.1Unit
CENTI0.01Unit
MILLI0.001Unit
MetersLitersGrams
DRUL Method
How do you use the “DRUL” method?
1st – Determine your starting point.
2nd – Count “jumps” to your ending point.
3rd – Move decimal point same number of jumps in same direction.
4 km = _________ m
12
3
How many jumps does it take?
Starting Point Ending Point
4.1
__.2
__.3
__. = 4000 m
Up to the Left
Down to the Right
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Try these conversions using the ladder method.
1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm
14 km = _______ m 109 g = _______ kg 250 m = _______ km
Conversion Practice
Compare using <, >, or =.
56 cm 6 m 7 g 698 mg
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Try these conversions, using the ladder method.
10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 cm = _______ mm
11) 104 km = _______ m 16) 198 g = _______ kg 21) 2500 m = _______ km
12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 g = _____ mg
13) 5.6 kg = _____ g 18) 50 cm = _____ m 23) 6.3 cm = _____ mm
14) 8 mm = _____ cm 19) 5.6 m = _____ cm 24) 120 mg = _____ g
Metric Conversion Challenge
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Compare using <, >, or =.
25) 63 cm 6 m 27) 5 g 508 mg 29) 1,500 mL 1.5 L
26) 536 cm 53.6 dm 28) 43 mg 5 g 30) 3.6 m 36 cm