| A | B |
|---|
| sequence | an orderd list of numbers |
| counting numbers | the numbers used to count: 1,2,3,4,... |
| digits | any of the symbols used to write numbers |
| even numbers | numbers that can be divided by 2 without a remainder |
| whole numbers | all the numbers in the sequence 0,1,2,3,4,5,6,.... |
| odd numbers | numbers that have a remainder of 1 when divided by 2 |
| < | the comparison symbol for less than |
| > | the comparison symbol for greater than |
| sum | answer to an addition problem |
| difference | answer to a subtraction problem |
| quotient | answer to a division problem |
| product | answer to a multiplication problem |
| Example of the Identity Property of Addition | 2 + 0 = 2 |
| Example of the Commutative Property of Addition | 8 + 2 = 2 + 8 |
| addends | numbers that are added |
| ordinal numbers | numbers used to name position or order |
| fact family | a group of three numbers related by addition and subtraction or by multiplication and division |
