| A | B |
|---|
| addend | the numbers added in an addition problem |
| century | 100 years |
| decade | 10 years |
| digit | symbols used to write numbers |
| even numbers | numbers that can be divided by 2 without a remainder |
| odd numbers | numbers that have a remainder of one when divided by two |
| fact family | three numbers that can make four facts |
| sum | answer to an addition problem |
| greater than | larger than 5>3 |
| less than | smaller than 3<5 |
