multi-digit multiplication with decimals

Front

What is multi-digit multiplication?

Back

Multi-digit multiplication is the process of multiplying numbers that have more than one digit, which can include whole numbers and decimals.

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there are no decimals, then place the decimal point in the product based on the number of decimal places in the original decimal.

Front

What is the product of 1.9 and 45?

Back

85.5

Front

What is the product of 3.6 and 89?

Back

320.4

Front

What is the product of 3.8 and 12?

Back

45.6

Front

What is the product of 8.5 and 66?

Back

561

Front

What is the product of 18.7 and 6?

Back

112.2

Front

How do you determine the placement of the decimal in a multiplication problem?

Back

Count the total number of decimal places in the factors being multiplied. The product should have the same number of decimal places.

Front

What is the first step in multiplying multi-digit numbers?

Back

The first step is to multiply the digits of the bottom number by each digit of the top number, starting from the right.

Front

What is an example of multiplying a decimal by a decimal?

Back

An example is 0.5 x 0.2 = 0.1.