Unit Conversions: Inches to Centimeters

This video tutorial explains how to convert between inches and centimeters using unit fractions. It provides two examples: converting 52 inches to centimeters and 68 centimeters to inches. The process involves writing the measurement as a fraction, using the conversion factor of 1 inch equals 2.54 centimeters, and simplifying the units to achieve the desired conversion.

What is the approximate conversion factor from inches to centimeters?

• 1 inch is approximately 4.54 centimeters

• 1 inch is approximately 1.54 centimeters

• 1 inch is approximately 3.54 centimeters

• 1 inch is approximately 2.54 centimeters

How do you start converting 52 inches to centimeters using a unit fraction?

• Convert 52 inches to meters first

• Write 52 inches as a fraction with a denominator of 1

• Multiply 52 inches directly by 2.54

• Write 52 inches as a fraction with a denominator of 2

What is the unit fraction used to convert inches to centimeters?

• 2.54 inches over 1 centimeter

• 1 inch over 2.54 centimeters

• 2.54 centimeters over 1 inch

• 1 centimeter over 2.54 inches

What is the result of converting 52 inches to centimeters?

• 132.08 centimeters

• 130.00 centimeters

• 135.00 centimeters

• 128.00 centimeters

What is the first step in converting 68 centimeters to inches?

• Write 68 centimeters as a fraction with a denominator of 1

• Write 68 centimeters as a fraction with a denominator of 2

• Convert 68 centimeters to meters first

• Multiply 68 centimeters directly by 0.39

What is the unit fraction used to convert centimeters to inches?

• 2.54 inches over 1 centimeter

• 1 inch over 2.54 centimeters

• 2.54 centimeters over 1 inch

• 1 centimeter over 2.54 inches

What is the result of converting 68 centimeters to inches before rounding?

• 26.77 inches

• 27.00 inches

• 25.77 inches

• 28.00 inches

To what decimal place are we instructed to round the conversion result?

• Tenths place

• Whole number

• Hundredths place

• Thousandths place

What is the approximate value of 68 centimeters in inches after rounding?

• 26.77 inches

• 27.77 inches

• 28.77 inches

• 25.77 inches

What is the significance of the third decimal place in rounding?

• It determines if we round up or down

• It is ignored in rounding

• It is used to convert to meters

• It is used to convert to feet