Dividing by Powers of Ten

This video tutorial teaches how to divide whole numbers and decimals by powers of ten using place value. It begins with an introduction to the concept, followed by a review of multiplication by powers of ten. The tutorial then explores powers of ten and their exponents, explaining how to divide by ten to the first and fourth powers. The key takeaway is that dividing by powers of ten shifts the digits to the right, reducing the number's value.

What is the main concept introduced in this lesson?

• Adding numbers using place value

• Dividing numbers by powers of ten

• Subtracting numbers using place value

• Multiplying numbers by powers of ten

What does the exponent in a power of ten indicate?

• The number of digits in the number

• The number of zeros in the number

• The number of times the number is divided by ten

• The number of times ten is used as a factor

What happens to the digits when a number is divided by ten to the first power?

• They shift one place to the left

• They shift one place to the right

• They remain in the same place

• They are replaced by zeros

In the example of nine and eight-tenths divided by ten to the first power, what happens to the digit 9?

• It stays in the ones place

• It moves to the thousandths place

• It moves to the tenths place

• It moves to the hundredths place

When dividing by a power of ten, what primarily changes in the number?

• The number of digits

• The place value of the digits

• The digits themselves

• The decimal point position

How many places do the digits shift when dividing four and three-tenths by ten to the fourth power?

• Two places

• Three places

• Five places

• Four places

In the example of four and three-tenths divided by ten to the fourth power, how many zeros are added?

• Three zeros

• Two zeros

• One zero

• Four zeros

What is the effect on the number's value when the decimal point moves to the left?

• The value doubles

• The value increases

• The value decreases

• The value remains the same

What is the result of dividing a number by a power of ten?

• The same number

• A smaller number

• A negative number

• A larger number

What is the key takeaway from this lesson?

• Subtracting numbers using place value

• Adding numbers using place value

• Multiplying numbers by powers of ten

• Understanding place value in division by powers of ten