Decimal x Power of Ten

The video tutorial explains the concept of decimal numbers, dividing them into whole and fractional parts. It introduces powers of 10, illustrating the pattern of zeros in each power. The tutorial demonstrates how to multiply decimal numbers by powers of 10, using examples and word problems to show practical applications. It concludes with a discussion on shortcuts for multiplying decimals by powers of 10.

What separates the whole number part from the fractional part in a decimal number?

• A comma

• A decimal point

• A colon

• A semicolon

How many zeros are there in 10 to the power of 4?

• Five

• Four

• Six

• Three

What is the result of multiplying 1.5 by 10 to the first power?

• 0.15

• 150

• 15

• 1.5

When multiplying 89.1 by 10 to the third power, how many places do you move the decimal?

• Four places to the left

• Three places to the right

• Two places to the right

• One place to the left

If a building is 9.84 times 10 to the second power feet tall, how tall is it?

• 9840 feet

• 9,840 feet

• 984 feet

• 98.4 feet