## NUMBERS

##### Across
1. 1. The square root of forty-nine.
2. 4. The result of dividing one number from another.
3. 5. Numbers we can add together to get another number.
4. 11. Rational numbers and irrational numbers.
5. 12. The result of adding one number from another.
6. 14. A collection of objects or things.
7. 15. 100.
8. 16. The result of subtracting one number from another.
9. 17. Numbers we can multiply together to get another number.
10. 20. Operation 6x3=18.
11. 21. 2 to the power of four plus four.
12. 24. 2 to the power of three.
13. 26. Real numbers that cannot be written as a simple fraction.
14. 27. Two numbers that are the same distance from 0 on the number line.
15. 30. The number of times a number or expression (called base) is used as a factor of repeated multiplication. Also called the power.
16. 31. Counting numbers {1, 2, 3, ...}.
17. 33. Something similar to parentheses .
18. 34. The ratios of integers, also called fractions, such as 1/2 = 0.5 or 1/3 = 0.333...
19. 35. The unluckiest number.
20. 36. Operation 27 :3 =9.
##### Down
1. 2. A mathematical sentence that contains an equals sign.
2. 3. The most common are add, subtract, multiply and divide (+, −, ×, ÷).
3. 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.
4. 7. A statement of the exact meaning of a word, especially in a dictionary.
5. 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.
6. 9. Operation 34-5=29.
7. 10. The abstract science of number, quantity, and space, either as abstract concepts.
8. 13. The result of multiplying one number from another.
9. 18. One of two equal factors of a given number.
10. 19. The ratio of a circumference of a circle to its diameter, an irrational number approximately equal to 3.14159...
11. 22. 12.
12. 23. Operation 3+8=11.
13. 25. 1000.
14. 28. The state of being equal. Having the same amount or value.
15. 29. Natural numbers and their negatives {... −3, −2, −1, 0, 1, 2, 3, ...}.
16. 32. Find an answer to, explanation for, or means of effectively dealing with (a problem or mystery).