| Across |
| 2. |
The set of numbers for counting AND zero. |
| 3. |
The symbol used to indicate a positive square root |
| 7. |
Pairs of operations that undo each other. Addition and subtraction are inverse operations. |
| 8. |
In repeating decimals, the line or bar placed over the digits that repeat. |
| 9. |
The set of whole numbers and their opposites. |
| 10. |
A number whose square root is a whole number. |
| 13. |
One of three equal factors of a number. |
| 14. |
a decimal in which one or more digits repeat |
| 15. |
the set of numbers used for counting. |
| 16. |
One of the two equal factors of a number. |
| 18. |
a decimal where the repeating digit is zero. |
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|
| Down |
| 1. |
the positive square root of a number |
| 4. |
A number whose cube root is an integer. 27 is a perfect cube because its cube root is 3. |
| 5. |
a number that cannot be expressed as the ratio a⁄b, where a and b are integers and b is not zero. |
| 6. |
numbers that can be written as the ratio of two integers in which the denominator is not zero. All integers, fractions, mixed numbers, and percents are rational numbers. |
| 11. |
A statement or example that shows a conjecture is false. |
| 12. |
the set of rational numbers together with the set of irrational numbers |
| 17. |
the most useful subject ever. |
| 18. |
a process of approximating a decimal number by eliminating all decimal places past a certain point without rounding. |
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