| __ | 1. | addend | | A. | points forming a straight path extending in both directions |
| __ | 2. | addition | | B. | ordered list of objects or events |
| __ | 3. | additive comparison | | C. | a closed curve with the same distance from the center |
| __ | 4. | arithmetic patterns | | D. | a specified number or amount |
| __ | 5. | array | | E. | arrangement of symbols in rows and columns |
| __ | 6. | circle | | F. | difference between quantities |
| __ | 7. | line | | G. | number being added |
| __ | 8. | quantity | | H. | finding the unknown addend in a subtraction problem |
| __ | 9. | sequence | | I. | operation combining objects together (+) |
| __ | 10. | unknown addend | | J. | sequence of numbers by adding a fixed number between each |
| __ | 11. | associative property | | A. | add or multiply any two numbers in any order for same result |
| __ | 12. | commutative property | | B. | add or multiply numbers in any order for same result |
| __ | 13. | comparison | | C. | how the size or order is the =, < , or > |
| __ | 14. | composite number | | D. | number with more than 2 factors of one and itself |
| __ | 15. | coordinate | | E. | operation that tells how many groups or how many in each |
| __ | 16. | coordinate plane | | F. | terms having the the same ordered position in a sequence |
| __ | 17. | corresponding terms | | G. | numbers show position on a line, graph, or map |
| __ | 18. | distributive property | | H. | determined by an x-axis and y-axis |
| __ | 19. | division | | I. | number sentence wtih two equal (=) expressions |
| __ | 20. | equation | | J. | a(b+c) = a x b + a x c |