Divide Decimals by Power of Ten

The video tutorial explains how to divide decimal numbers by powers of ten. It begins with an introduction to decimal numbers, highlighting the whole and fractional parts. The concept of powers of ten is then explained, detailing how each power represents ten multiplied by itself a certain number of times. The tutorial provides a shortcut for dividing decimals by powers of ten, which involves moving the decimal point to the left according to the power's exponent. Examples are given to illustrate this method. A pattern is identified: the decimal point moves left as many times as the exponent of the power of ten. The video concludes by emphasizing the use of shortcuts in math.

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

• A semicolon

• A colon

• A decimal point

• A comma

What is 10 to the power of 3?

• 10,000

• 10

• 1,000

• 100

How many places do you move the decimal point to the left when dividing by 10 to the second power?

• Four places

• Two places

• One place

• Three places

When dividing by 10 to the fourth power, how many times does the decimal point move to the left?

• Two times

• Five times

• Three times

• Four times

What is the shortcut for dividing a decimal number by a power of 10?

• Adding zeros to the right

• Moving the decimal point to the left

• Multiplying by 10

• Moving the decimal point to the right