Lesson 3.73.7 Small Group · Group 2
Group 2 · Set BSecond challenge form · new problems, same idea
Learning target I can use ratio reasoning to convert measurements between the customary and metric systems, explain why the method works, and use it on a problem I have not seen before.
Remember3.7 Small Group · Group 2
A conversion factor works in both directions: multiply to go one way and divide to go back. The shorter unit always gives the bigger number. We can use a conversion factor backward. Divide to find how many of the smaller unit fit.
Words: Conversion factor (Factor de conversión)Customary system (Sistema usual)Metric system (Sistema métrico)Approximately (Aproximadamente)Ratio table (Tabla de razones)
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1Complete each step, then write the final answer.
A trail is 12 miles long. Use 1 kilometer ≈ 0.6 mile. About how many kilometers long is the trail?
Show your workFinal answer: -
2Complete each step, then write the final answer.
Use 1 kilometer ≈ 0.6 mile. About how many kilometers is 4.2 miles?
Show your workFinal answer: -
3Complete each step, then write the final answer.
A water jug holds 19 liters. Use 1 gallon ≈ 3.8 liters. About how many gallons does the jug hold?
Show your workFinal answer: -
4Complete each step, then write the final answer.
A truck weighs 4,400 pounds. A bridge sign says the limit is 3,000 kilograms. Use 1 kilogram ≈ 2.2 pounds. About how many kilograms under the limit is the truck?
Show your workFinal answer: