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**Metric Conversions Ladder Method**

T. Trimpe

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**What do we measure and what do we measure it in?**

International System of Units (SI) System used by all scientists around the world to share precise data in a format that is understood by all What do we measure and what do we measure it in? Length – measured in meters (m) Volume (how much space something takes up) – measured in - Liters (if liquid) (L) Cubic meter units (if solid) m3

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**H DA D C M Scale based on units of 10**

K 1000 H 100 DA 10 10 times smaller each step D 0.1 C 0.01 M 0.001 10 times larger each step King Henry Died By Drinking Chocolate Milk

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**How many jumps does it take?**

Ladder Method- Length 1 2 3 KILO 1000 Units HECTO 100 Units DEKA 10 Units 10 times smaller each step km DECI 0.1 Unit hm m CENTI 0.01 Unit dam MILLI Unit dm cm 10 times larger each step mm How do you use the “ladder” method? 1st – Determine your starting point. 2nd – Count the “jumps” to your ending point. 3rd – Move the decimal the same number of jumps in the same direction. 4 km = _________ m Starting Point Ending Point How many jumps does it take? 4. 1 __. 2 __. 3 __. = 4000 m

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**Ladder Method- Length KILO 1000 Units HECTO 100 Units DEKA 10 Units**

10 times smaller each step km DECI 0.1 Unit hm m CENTI 0.01 Unit dam MILLI Unit dm cm 10 times larger each step mm 700,000 0.04 hm = _________ cm 400 70 km = _________ dm 0.5004 0.720 5004 cm = _________ hm 720 mm = _________ m

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**Conversion Practice k h da m L d c m**

Try these conversions using the ladder method. 1000 km = _______ m 1 L = _______ mL 160 dam = _______ mm 14 km = _______ cm 109 cm = _______ mm 250 L = _______ ml 1,000,000 1,000 1,600,000 1,400,000 1,090 250,000

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**K H D B D C M Compare using <, >, or =. 56 cm 6 m 7 L 698 ml**

Metric Rap

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**Metric Conversion Challenge**

Write the correct abbreviation for each metric unit. 1) Hectometer ____ 4) milliliter _____ 7) kilometer _____ 2) meter _____ 5) millimeter _____ 8) centimeter _____ 3) deciliter _____ 6) liter _____ 9) dekameter _____ Try these conversions, using the ladder method. 10) 2000 ml = _______ L 15) 5 L = _______ mL 20) 16 cm = _______ mm 11) 104 km = _______ m 16) 198 m = _______ mm 21) 2500 m = _______ km 12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 m = _____ mm 13) 5.6 km = _____ m 18) 50 cm = _____ m 23) 6.3 cm = _____ dam 14) 8 mm = _____ dm 19) 5.6 m = _____ cm 24) 120 ml = _____ L

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**Compare using <, >, or =.**

25) 63 cm m 27) 5 L ml 29) 1,500 mL L 26) 536 cm dm 28) 43 mm m 30) 3.6 m cm

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