Across
- 2. The difference is the answer to a subtraction problem, in which one number is taken away from another.
- 4. The longest side of a right-angled triangle, always opposite to the right angle itself.
- 9. A line whose points correspond to numbers.
- 10. An angle whose measure is between 0° and 90° or with less than 90° (or pi/2) radians.
- 11. The ordered pair that gives a precise location or position on a coordinate plane.
- 13. A number that cannot be represented as a decimal or fraction. A number like pi is irrational because it contains an infinite number of digits that keep repeating. Many square roots are also irrational numbers.
- 14. The mirror image of a shape or object, obtained from flipping the shape on an axis.
- 15. A graphical representation showing the factors of a specific number.
Down
- 1. A metric unit of measurement for length, abbreviated as cm. 2.5 cm is approximately equal to an inch.
- 3. A number that can be divided or is divisible by 2.
- 5. The sum of two or more monomials.
- 6. An angle equal to 90°.
- 7. A number squared is multiplied by itself; the square root of a number is whatever integer gives the original number when multiplied by itself. For instance, 12 x 12 or 12 squared is 144, so the square root of 144 is 12.
- 8. A mathematical equation expressing inequality and containing a greater than (>), less than (<), or not equal to (≠) symbol.
- 12. A semi-circle device used for measuring angles. The edge of a protractor is subdivided into degrees.