Math Vocabulary

3. A part of a whole. It has a top and bottom number (like ½).
5. All whole numbers and their opposites (…–3, –2, –1, 0, 1, 2, 3…).
6. A shape with 3 sides and 3 angles.
7. The number in front of a variable. In 4x, the coefficient is 4.
8. Repeated addition. Example: 3 × 4 means 3 + 3 + 3 + 3 = 12.
10. The bottom number in a fraction; it shows how many equal parts the whole is divided into. In ¾, the denominator is 4.
16. Letters or symbols that stand for a number. Example: x or y.
19. The distance around the edge of a shape. Add all the sides together.
21. A number on its own with no variable. Example: In 3x + 5, the 5 is the constant.
22. A math sentence that shows two things are equal. Example: 6 + 2 = 8.
23. Putting numbers together to find the total. Example: 5 + 3 = 8.
24. A number that includes a dot (.) to show parts of a whole. Example: 2.5.
25. The top number in a fraction; it shows how many parts you have. In ¾, the numerator is 3.

1. Numbers greater than zero. Example: 3, 10, 100.
2. A shape with 4 sides and 4 right angles; opposite sides are equal.
4. Taking one number away from another. Example: 9 − 4 = 5.
9. A round shape with no corners or edges; every point on the edge is the same distance from the center.
11. A math phrase that has numbers, symbols, and/or letters but no equal sign. Example: 3x + 2.
12. The amount of space a shape covers. It's found by multiplying length × width for rectangles and squares.
13. Splitting a number into equal parts. Example: 12 ÷ 3 = 4.
14. A tool used to do math quickly and correctly.
15. The study of numbers, shapes, patterns, and solving problems.
17. A rectangle with all sides equal in length.
18. Numbers less than zero. They have a minus sign (–). Example: –5.
20. The final amount after adding. Example: The total of 4 + 6 is 10.