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Metric Units of Mass Conversion Lesson with Examples

Learn how to convert metric units of mass, like grams to milligrams and kilograms to grams, with practical examples. Test your knowledge by comparing different masses in various units.

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Metric Units of Mass Conversion Lesson with Examples

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  1. Splash Screen

  2. Five-Minute Check (over Lesson 12–2) Main Idea and Vocabulary Key Concept: Metric Units of Mass Example 1: Convert Larger Units to Smaller Units Example 2: Convert Smaller Units to Larger Units Example 3: Compare Mass Lesson Menu

  3. I will convert metric units of mass. • milligram • kilogram • mass • gram Main Idea/Vocabulary

  4. KC 1

  5. 45 g = mg Convert Larger Units to Smaller Units Hamsters have a mass of about 45 grams. What is the mass in milligrams? A gram is a larger unit than a milligram. 1 g = 1,000 mg, so multiply 45 by 1,000. 45 × 1,000 = 45,000 Answer: So, 45 g = 45,000 mg. Hamsters have a mass of about 45,000 milligrams. Example 1

  6. A B C D Convert 21 kilograms to grams. • 21 grams • 210 grams • 2,100 grams • 21,000 grams Example 1

  7. 9,500 g = kg Convert Smaller Units to Larger Units Jill’s dog has a mass of 9,500 grams. What is its mass in kilograms? A gram is a smaller unit than a kilogram. 1,000 g = 1 kg, so divide 9,500 by 1,000. 9,500 ÷ 1,000 = 9.5 Answer: So, 9,500 g = 9.5 kg. Jill’s dog has a mass of 9.5 kilograms. Example 2

  8. A B C D Convert 17,000 milligrams to grams. • 1.7 grams • 17 grams • 170 grams • 1,700 grams Example 2

  9. 56 g = mg Compare Mass Raina put birdseed in two feeders. At the end of three days, Feeder A had 56 grams of seeds in it and Feeder B had 46,350 milligrams of seed in it. Which feeder had the most seed in it? Explain. Convert a larger unit to a smaller unit. 1 g = 1,000 mg, so multiply 56 by 1,000. 56 × 1,000 = 56,000 Answer: So, 56 g = 56,000 mg. Feeder A had the most seed in it since 56 g = 56,000 mg and 56,000 mg > 46,350 mg. Example 3

  10. A B C Laura is taking two packages to be shipped. Package 1 weighs 75,605 milligrams and Package 2 weighs 81 grams. Which weighs more? • package 1 • package 2 • They both weigh the same. Example 3

  11. End of the Lesson End Lesson

  12. Five-Minute Check (over Lesson 12–2) Image Bank Math Tool Chest Metric Rulers Resources

  13. (over Lesson 12–2) Solve. Determine if the answer is reasonable. Consuela could swim 100 yards in 3 minutes. At that rate, she estimated that she could swim 1 mile in 20 minutes. Is her estimate reasonable? Why or why not? Five Minute Check 1

  14. A B C D (over Lesson 12–2) A. Yes; 1 mile equals 2,760 yards. 2,760 ÷ 100 = 27.6 one hundred yard lengths. Since each length takes 3 minutes to swim, the total time would be 27.60 × 3 min = about 82.8 minutes. B. Yes; 1 mile equals 1,760 yards. 1,760 ÷ 100 = 17.60 one hundred yard lengths. Since each length takes 3 minutes to swim, the total time would be 17.60 × 3 min = about 53 minutes. C. No; 1 mile equals 1,760 yards. 1,760 ÷ 100 yds = 17.60 one hundred yard lengths. Since each length takes 3 minutes to swim, the total time would be 17.60 × 3 min = about 53 minutes. D. No; 1 mile equals 2,760 yards. 2,760 ÷ 100 = 27.6 one hundred yard lengths. Since each length takes 3 minutes to swim, the total time would be 27.60 × 3 min = about 82.8 minutes. Five Minute Check 1

  15. End of Custom Shows

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