Multiply and Divide Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten. It is used to represent numbers that are not whole numbers.

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 price per pound if 1.5 pounds cost $6.75?

Back

$4.50

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it becomes a whole number. Move the decimal point in the dividend the same number of places to the right, then divide as usual.

Front

What is the average speed if 1.6 hours is taken to run 13.2 miles?

Back

8.25 mph

Front

If Jackie rode around a park trail of 8.54 miles 4 times, how many miles did she travel?

Back

34.16 miles

Front

Calculate 0.6 ÷ 5.

Back

0.12

Front

Calculate 7.8 ÷ 0.03.

Back

260

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If a × b = c, then c ÷ b = a and c ÷ a = b.

Front

What does it mean to round a decimal?

Back

Rounding a decimal means adjusting its value to make it simpler while keeping it close to the original value, often to a specified number of decimal places.