Mastering Proportions for Measurement Conversions

The video from Mumu Math and Science explains measurement conversions using proportions. It covers three examples: converting meters to centimeters, pounds to ounces, and gallons to quarts. The video emphasizes the importance of consistent units on both sides of the proportion and demonstrates that the setup order does not affect the result.

What is the first step in solving a measurement conversion problem?

• Cross-multiplying the numbers

• Setting up a labeled proportion

• Adding the given number to the conversion factor

• Dividing the given number by the conversion factor

In the first example, what is the conversion factor between meters and centimeters?

• 1 meter = 1 centimeter

• 1 meter = 1000 centimeters

• 1 meter = 10 centimeters

• 1 meter = 100 centimeters

How many centimeters are there in 38 meters?

• 380 cm

• 3800 cm

• 38 cm

• 38000 cm

What is the unit of measure for the final answer in the first example?

• Meters

• Centimeters

• Inches

• Feet

In the second example, how many ounces are there in one pound?

• 8 ounces

• 12 ounces

• 16 ounces

• 20 ounces

If a dog weighs 72 pounds, how many ounces does it weigh?

• 1440 ounces

• 1152 ounces

• 720 ounces

• 1024 ounces

In the third example, how many quarts are there in one gallon?

• 5 quarts

• 3 quarts

• 2 quarts

• 4 quarts

How many quarts are there in 3.5 gallons?

• 12 quarts

• 10.5 quarts

• 14 quarts

• 7 quarts

What is the key rule to remember when setting up proportions for conversions?

• Always put the smaller unit on top

• Always put the larger unit on top

• Ensure the units are consistent on both sides

• It doesn't matter how you set it up

What is the final step in solving a conversion problem after cross-multiplying?

• Dividing each side by the coefficient of the variable

• Multiplying each side by the coefficient of the variable

• Adding the results

• Subtracting the results