Multiplying and Dividing Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal that represents 5/10.

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 rule for dividing decimals?

Back

To divide decimals, move the decimal point in the divisor (the number you are dividing by) to the right until it is a whole number. Move the decimal point in the dividend (the number being divided) the same number of places to the right, then divide as usual.

Front

5.2 ÷ 0.2 = ?

Back

26

Front

Rosa and three friends had lunch together. The total bill was $9.20. What was Rosa’s share?

Back

$2.30

Front

3 x 4.4 = ?

Back

13.2

Front

What is the product of 8.4 and 6.2?

Back

52.08

Front

4.34 ÷ 0.2 = ?

Back

21.7

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. For example, rounding 2.67 to the nearest whole number gives 3.

Front

What is the place value of 0.5?

Back

In 0.5, the digit 5 is in the tenths place, which means it represents 5/10.