Vocab Center

6. is measured in square units
8. a ____________ expression consists of numbers and operations
9. when two integers have the _____ sign, we add their absolute values and use the common sign.
10. substitute a number for each variable and evaluate the resulting numerical expression
11. is the result of a repeated multiplication of the same factor
14. integers that are less than 0 are__________ integers.
16. shows the number of times the base is used as a factor.
17. is the number zero, a positive natural number, or the negation of a positive natural number.
18. The opposite of a number is also called the _________ inverse.
19. is the distance of a number to 0 on a number line.

1. when two integers have ________ signs, we substract their absolute values and use the sign of number with greater absolute value. and
2. Two numbers that have the same absolute value but different signs.
3. ________ model describes a problem using words as labels and using math symbols to relate the words.
4. a letter used to represent one or more numbers
5. is measured in cubic units
7. a _________ expression consists of numbers, variables, and operations.
11. Integers thar are greater than 0 are __________ integers.
12. to add a positive number move to the __________.
13. to add a negative number move to the __________.
15. parenthesis,exponents,multiplication or division,and addition or substraction.