Ch. 1 Vocabulary - Place Value, Addition & Subtraction

A number written with numbers sometimes commas and decimals are included.

• Expanded Form

• Standard Form

• Word Form

• Short Word Form

A number written out in word form.

• Word Form

• Short Word Form

• Expanded Form

• Standard Form

shows a number as the sum of the values of each digit in the number, in order from greatest to least.

• Standard Form

• Expanded Form

• Short Word Form

• Word Form

The value of a number two places to the right of the decimal. 

• Hundreds

• Hundredths

• Thousandths

• Tenths

A chart that can help you identify the value of a digit in a number.

• Place Value Chart

• Graph

• Number Line

• Line Plat

If the digit is 5 or more, round _______.

• Round Over

• Round Down

• Round Up

• Round One Over

If the digit is 5 or less ______.

• Round

• Let It Rest

• Round Up

• Round Down

Is when changing the order of the addends does not change the sum.

• Commutative Property of Addition

• Associative Property of Addition

• Identity Property of Addition

• Distributive Property

Is when changing the grouping of the addends does not change the sum.

• Commutative Property of Addition

• Associative Property of Addition

• Distributive Property of Addition

• Identity Property of Addition

 Is when the sum of zero and a number is the same as that number. 

• Commutative Property of Addition

• Associative Property of Addition

• Distributive Property

• Identity Property of Addition