Vocab Center

3. A ________ is the result of a repeated multiplication of the same factor.
5. A__________ expressionconsists of numbers, variables, and operations
6. A _________ is a letter used to represent one or more numbers.
8. _______ integers are integers that are greater than 0.
10. to add two integers with ____ signs, substract their absolute values and use the sign of the greatest absolute value.
13. Two numbers are_______ if they have the same absolute value but different signs.
15. The opposite of a number is also called its ______ inverse.
16. The_________ shows the number of times the base is used as a factor.
18. To _________ a variable expression, substitute a number for each variable and solve the resulting numerical expression.

1. to add two integers with the ____ sign, add the absolute value and use the common sign.
2. To evaluate expressions involving more than one operation, mathematicians have agreed on a set of rules called the order of _________.
4. The________ value of a number is its distance from 0 on a number line.
7. ________ is measured in square units.
9. _______ are the numbers ...,-3,-2,-1, 0, 1, 2, 3,...
11. A _________ expression consists of numbers and operations.
12. _________ is measured in cubic units.
14. A _________ model describes a problem using words as labels and using math symbols to relate the words.
17. ______ integers are integers that are less than 0.