Mastering Mixed Measures and Powers of Ten in Saxon Math

This lesson covers adding and subtracting mixed measures, such as hours and minutes or feet and inches, and multiplying by powers of ten. It includes practical examples like calculating the total time of a hike and determining a vertical leap. The lesson also explains how to express numbers in standard notation by moving decimal points according to powers of ten. Students are encouraged to practice these concepts through various exercises.

What is a mixed measure?

• A measurement that includes decimals.

• A measurement that includes more than one unit.

• A measurement that includes fractions.

• A measurement that includes only one unit.

How many hours and minutes is the total hike if the first part took 1 hour 50 minutes and the return trip took 1 hour 40 minutes?

• 3 hours 20 minutes

• 3 hours 30 minutes

• 2 hours 90 minutes

• 3 hours 40 minutes

If Tyrone's vertical leap is measured as 8 feet 7 inches minus 6 feet 9 inches, what is the result?

• 1 foot 9 inches

• 2 feet 2 inches

• 1 foot 10 inches

• 1 foot 8 inches

What happens to the digits when multiplying by powers of ten?

• Only the decimal point changes.

• The digits and place value change.

• The digits remain the same but the place value changes.

• The digits change.

How do you write 1.2 times 10^3 in standard notation?

• 12000

• 1200

• 120

• 12

What is the standard notation for 6.2 times 10^2?

• 6.2

• 6200

• 62

• 620

How many places do you move the decimal point to write 0.5 billion in standard notation?

• 7 places

• 9 places

• 8 places

• 6 places

What is the standard notation for 1.5 million?

• 150,000

• 15,000,000

• 150,000,000

• 1,500,000

If you have 6 feet 5 inches and add 4 feet 8 inches, what is the result?

• 11 feet 2 inches

• 10 feet 12 inches

• 11 feet 1 inch

• 10 feet 13 inches

What is the result of subtracting 1 hour 40 minutes from 3 hours 15 minutes?

• 2 hours 35 minutes

• 1 hour 35 minutes

• 1 hour 25 minutes

• 2 hours 25 minutes