Mastering Decimal Multiplication and Division

This video tutorial covers the concepts of multiplying and dividing decimals. It begins with an introduction to the topic, followed by detailed steps and examples for multiplying decimals. The tutorial then provides practice problems to reinforce learning. It continues with instructions on dividing decimals by whole numbers and concludes with a section on dividing decimals by other decimals, including examples and step-by-step guidance.

When multiplying two decimal numbers, how do you determine where to place the decimal point in the product?

• Ignore the decimal points in the original numbers.

• Place the decimal point at the end of the product.

• Place the decimal point directly after the first digit of the product.

• Count the total number of decimal places in both numbers and place the decimal point in the product so that it has the same number of decimal places.

In the example of multiplying 345 by 4082, what is the first step after removing the decimal points?

• Align the numbers to the right.

• Add zeros to the smaller number.

• Align the numbers to the left.

• Multiply the numbers directly.

When multiplying 3456 by 13, what is the result of multiplying 3 by 6?

• 16

• 18

• 20

• 24

How many digits should be to the right of the decimal point in the product of 0.4 and 0.6?

• Two

• Four

• One

• Three

When dividing a decimal by a whole number, where should you place the decimal point in the quotient?

• At the end of the quotient.

• Do not place a decimal point.

• At the beginning of the quotient.

• Directly above the decimal point in the dividend.

In the division of 15.89 by 14, what is the first step after setting up the problem?

• Move the decimal point in the divisor.

• Move the decimal point in the dividend.

• Determine how many times the divisor goes into the first digit of the dividend.

• Add zeros to the dividend.

What is the quotient of 8.4 divided by 3?

• 2.8

• 3.4

• 2.6

• 3.2

When dividing 1.976 by 0.16, how many places do you move the decimal point to the right in both the divisor and the dividend?

• One place

• Four places

• Two places

• Three places

After converting the divisor to a whole number in the division of 1.976 by 0.16, what is the new dividend?

• 19.76

• 197.6

• 1.976

• 0.1976

In the division of 520 by 32, what is the first step after setting up the problem?

• Add zeros to the dividend.

• Determine how many times the divisor goes into the first digit of the dividend.

• Move the decimal point in the dividend.

• Move the decimal point in the divisor.