1. Cube root A number that must be multiplied by itself three times to obtain a given number. this is said “cube root of 8”

2. Right triangle A triangle with one angle measuring 90°. Right angle

3. An angle that measures exactly 90°.

4. Leg Either of the legs connected to the base of a trapezoid or triangle. legs

5. Hypotenuse The side opposite the right angle in a right triangle.

6. Trigonometric Of or relating to the principles of trigonometry. Studies relationships involving lengths and angles of triangles.

7. Cubed Raised to the third power.

8. Expanded notation Writing a number to show the value of each digit. (1 x 100,000) + (2 x 10,000) + (9 x 1000) + (3 x 100) + (4 x 10) + (7 x 1) Expanded notation

9. Integer exponent An exponent that is any integer, positive, negative or 0. exponent

10. Radical

11. Mathematics Vocabulary - Grade 7 ©Partners for Learning, Inc. Real number The set of all rational and irrational numbers.

12. Power of ten A number with 10 as a base and a whole-number exponent. 10 6

13. Tenth power Raising a number to the tenth power is multiplying a number by itself 10 times.

14. Scientific notation Scientific notation is a way to write a number as the product of a number between 1 and 10 and a power of 10. written in scientific notation would be:

15. Logarithm The logarithm base ( b ) of a number ( x ) is the power to which b must be raised in order to equal x.

16. Irrational numbers Numbers that cannot be written as a single fraction. The decimal goes on forever without repeating.

17. Terminating decimal A decimal that end at some point.

18. Rational number Any number that can be written as a fraction. -4 6 5.5

19. Repeating decimal A decimal with a sequence of digits that repeats itself indefinitely.

20. Mathematics Vocabulary - Grade 7 ©Partners for Learning, Inc. Prime factorization The expression of a number as the product of prime factors.