Unit 4 Math Vocabulary

Associative Property of Multiplication: the property that states that factors can be grouped in different ways and still get the same product. Example: (2 X 3) X 4=2 X (3 X 4)

Commutative Property of Multiplication: the property that states that wen the order of two factors is changed, the product is the same. Example: 4 X 5= 5 X 4

Decimal: a number with one or more digits to the right of the decimal point.

Decimal Point: a symbol used to separate dollars from cents in money, and to separate the ones place from the tenths place in a decimal.

Distributive Property: the property that states that multiplying a sum by a number is the same as multiplying each addend in the sum by the number and then adding the products. 
Example: 3 X (4 + 2) = ( 3 X 4 ) + (3 X 2)
                       3 X 6 = 12 + 6
                             18 = 18

Expanded Form: a way to write numbers by showing the value of each digit. 
Example: 832= 8 X 100 + 3 X 10 + 2 X 1

Exponent: a number that shows how many times the base is used as a factor. 
Example: 10^3 = 10 X 10 X 10.  3 is the exponent.

Factor: a number multiplied by another number to find a product.

Hundredth/Hundredths: One of 100 equal parts.  Example: 0.56, 56/100, fifty-six hundreths.

Partial Product: a method of multiplying in which the ones, tens, hundreds, and so on are multiplied separately and then the products are added together.

Pattern: an ordered set of numbers or objects; the order helps you predict what will come next. Example: 2,4,6,8

Place Value: the value of each digit in a nyymber based on the location of the digit.

Powers of Ten: is the number of 10 multiplied by itself.

Product: the answer to a multiplication problem.

Tenth/Tenths: one of 10 equal parts. Example: 0.7 = seven tenths

Thousandth/Thousandths: one of one thousand equal parts.  Example: 0.006= six thousandths