Multiplying decimals  Decimals
Multiplying decimals
Previously, we learned how to add and subtract decimal numbers. In this section, we will learn how to multiply decimal numbers. As learned in previous section, when adding and subtracting decimal numbers, the decimal points must be lined up. In contrast, when multiplying decimal numbers, it is not important that the decimal points be lined up. Instead, it is important to line up the digits in the lowest place values of both numbers. In order to figure out where to place the decimal point in the answer, we must count how many digits total, between the two numbers being multiplied together, are behind the decimal points.
Basic concepts:
 Determining Common Factors
 Introduction to Exponents
Related concepts:
 Applications of percents
 Percents, fractions, and decimals
Lessons

a)
How to multiply decimals?

b)
How to round decimals?


1.
Complete each multiplication statement.