Module 3: Multiplying with Decimal Numbers

Front

What is a decimal number?

Back

A decimal number is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 2.5 is a decimal number.

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there were no decimal point, 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 2.5 and 4?

Back

The product of 2.5 and 4 is 10.

Front

How do you multiply two decimal numbers?

Back

Multiply the numbers as if they were whole numbers, then count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Front

What is 0.6 x 0.3?

Back

0.6 x 0.3 = 0.18.

Front

What does it mean to round a decimal?

Back

Rounding a decimal means adjusting the number to a nearby value that is simpler or easier to work with, often to a specified number of decimal places.

Front

How do you round 3.76 to one decimal place?

Back

3.76 rounded to one decimal place is 3.8.

Front

What is the cost of 8.7 miles at $2.25 per mile?

Back

The cost is $19.58.

Front

If Rylie buys 45 boxes of juice with 3.98 pints in each box, how many pints does she buy?

Back

Rylie buys about 200 pints of juice.

Front

What is 6.6 x 4.01?

Back

6.6 x 4.01 = 26.466.