Multiply Decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

Front

How do you multiply decimals?

Back

To multiply decimals, 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 the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. Formula: Area = Length × Width.

Front

Calculate the area of a wall that is 9.5 feet tall and 13.5 feet wide.

Back

The area is 9.5 × 13.5 = 128.25 square feet.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to a nearby value that is simpler or more convenient, often to the nearest whole number or decimal place.

Front

If a fabric costs $3.79 per meter, how much would 3.4 meters cost?

Back

Cost = 3.4 × 3.79 = $12.89.

Front

What is the product of 345.9 and 100?

Back

345.9 × 100 = 34,590.

Front

How do you round $30.35 to the nearest cent?

Back

$30.35 is already rounded to the nearest cent.

Front

What is the cost of 10.5 gallons of gas at $2.89 per gallon?

Back

Cost = 10.5 × 2.89 = $30.35.

Front

What is the formula for finding the total cost of multiple items?

Back

Total Cost = Price per item × Number of items.