## Math

##### Across
1. 4. square, Any number that is the square of a rational number. For
2. 5. Any of the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 used to write numbers.
3. 7. commonly used number system. A number that shows a value smaller
4. 8. equal signs (=).
6. 12. A term that describes the base-10 number system, probably the
7. 15. A ratio of numbers or variables. Fractions may not have
8. 18. x in the expression ax. For example, 3 is the exponent in 23.
9. 19. All positive and negative whole numbers (including zero). That is,
10. 20. 0.
11. 23. A corner point of a geometric figure. For a polygon, vertices are
12. 24. The likelihood of the occurrence of an event.
13. 25. Theorem, An equation relating the lengths of the sides of a
14. 29. square of the hypotenuse.
##### Down
1. 1. The result of dividing two numbers or expressions.
2. 2. numbers we can multiply together to get another number.
3. 3. number, The numbers 0, 1, 2, 3, 4, 5, etc.
4. 6. The four sections into which the x-y plane is divided by the x- and
5. 9. 0, 1, 4, 9, 16, 25.
6. 10. The distance around the outside of a plane figure. It is the sum of
7. 13. an object such as a triangle or circle.
8. 14. A mathematical sentence built from expressions using one or
9. 16. parts per 100, the symbol is %.
10. 17. The size of a surface. The amount of space inside the boundary of a flat