##### Across

**2.**a number less than four but greater than two**3.**an alphabet or term that represents an unknown number or unknown value or unknown quantity**4.**a number less than nine but greater than seven**6.**calculating a value using operands and a math operator**9.**sets having a finite/countable number of members**12.**a number greater than six but less than eight**15.**the quantitative relation between two amounts showing the number of times one value contains or is contained within the other**16.**the smallest natural number**18.**the distance from zero that a number is on the number line, without considering direction**19.**the set that does not contain anything**20.**a set whose elements can not be counted

##### Down

**1.**set of numbers or variables combined using the operations + , – , × o r ÷**5.**has a value of 3.14**7.**process of combining two or more numbers**8.**branch of mathematics that deals with the measurement, properties, and relationships of points, lines, angles, surfaces, and solids**10.**branch of mathematics that helps in the representation of problems or situations in the form of mathematical expressions**11.**a whole number (not a fractional number) that can be positive, negative, or zero**13.**process of splitting a specific amount into equal parts**14.**A fixed value**17.**any collection of objects (elements), which may be mathematical (e.g., numbers and functions) or not**21.**arithmetic value used to represent quantity