**1.**The square root of forty-nine.**4.**The result of dividing one number from another.**5.**Numbers we can add together to get another number.**11.**Rational numbers and irrational numbers.**12.**The result of adding one number from another.**14.**A collection of objects or things.**15.**100.**16.**The result of subtracting one number from another.**17.**Numbers we can multiply together to get another number.**20.**Operation 6x3=18.**21.**2 to the power of four plus four.**24.**2 to the power of three.**26.**Real numbers that cannot be written as a simple fraction.**27.**Two numbers that are the same distance from 0 on the number line.**30.**The number of times a number or expression (called base) is used as a factor of repeated multiplication. Also called the power.**31.**Counting numbers {1, 2, 3, ...}.**33.**Something similar to parentheses .**34.**The ratios of integers, also called fractions, such as 1/2 = 0.5 or 1/3 = 0.333...**35.**The unluckiest number.**36.**Operation 27 :3 =9.

**2.**A mathematical sentence that contains an equals sign.**3.**The most common are add, subtract, multiply and divide (+, −, ×, ÷).**6.**A number (or ordered pair of numbers, or set of numbers) that produces a true statement when substituted for the variable(s) in an equation or inequality.**7.**A statement of the exact meaning of a word, especially in a dictionary.**8.**A branch of mathematics that uses symbols or letters to represent variables, values or numbers, which can then be used to express operations and relationships and to solve equations.**9.**Operation 34-5=29.**10.**The abstract science of number, quantity, and space, either as abstract concepts.**13.**The result of multiplying one number from another.**18.**One of two equal factors of a given number.**19.**The ratio of a circumference of a circle to its diameter, an irrational number approximately equal to 3.14159...**22.**12.**23.**Operation 3+8=11.**25.**1000.**28.**The state of being equal. Having the same amount or value.**29.**Natural numbers and their negatives {... −3, −2, −1, 0, 1, 2, 3, ...}.**32.**Find an answer to, explanation for, or means of effectively dealing with (a problem or mystery).