# Multiplying Decimals - internet.savannah.chatham.k12.ga.us Multiplying Decimals Lesson 1-7 To Multiply: You do not line up the factors by the decimal. Instead, place the number with more digits on top. Line up the other number underneath, at the right. Multiply Count the number of decimal places (from the

right) in each factor. Use the total number of decimal places in your two factors to place the decimal in your product. Example: 5.63 x 3.7 1 4 2 5.63 x 37 39 4 1 + 168 9 0 20.8 31 .

two one 1 1 1 three Example: 0.53 x 2.618 2.618 has more digits (4) than 0.53 (3), so it goes on top. 3

1 4 2 2 618 x 0 53 7 854 130 900 + 000 000 1.38 754 . 1

. Decimal Places three two five Try This: 6.5 x 15.3 3 1 2 1 15.3

x 6.5 76 5 + 918 0 9 9.4 5 one one 1 two Multiplication Properties Commutative Property of Multiplication: Factors can be multiplied

in any order. Example: 12 x 5 = 5 x 12 Associative Property of Multiplication: Factors can be grouped in any way. Example: (2 x 3) x 5 = 2 x (3 x 5) Identity Property of Multiplication: The product of any number and one is that number. Example: 18 x 1 = 18 Homework Time The above image is a royalty free picture provided by http://www.bigfoto.com