Multiplying and Dividing 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, 2.5 is a decimal.

Front

How do you multiply decimals?

Back

To multiply decimals, first 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 product of 0.5 and 0.2?

Back

0.1

Front

How do you divide decimals?

Back

To divide decimals, you can convert the divisor (the number you are dividing by) into a whole number by moving the decimal point to the right. Move the decimal point in the dividend (the number being divided) the same number of places. Then, divide as usual.

Front

What is 1.5 ÷ 0.5?

Back

3

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 certain number of decimal places.

Front

What is the value of 3.14 rounded to one decimal place?

Back

3.1

Front

If you multiply a decimal by 10, what happens to the decimal point?

Back

The decimal point moves one place to the right.

Front

What is 0.75 x 100?

Back

75

Front

What is the relationship between multiplication and division of decimals?

Back

Multiplication and division are inverse operations. If you multiply a decimal by a number and then divide by the same number, you return to the original decimal.