1.1 Review Worksheet, Part 1
1.1.1 Variables and Expressions Give two ways to write each algebraic expression in words.
1. 5 p
2. 4 − y
3. 3 + x
4. 3 y
5. − 3 s
6. r ÷ 5
7. 14 − t
8. x + 0.5
9. Friday’s temperature was 20° warmer than Monday’s temperature t . Write an expression for Friday’s temperature.
10. Ann sleeps 8 hours per night. Write an expression for the number of hours Ann sleeps in n nights.
Evaluate each expression for r = 6, s = 5, and t = 3. 11. r − s 12. s + t
13. r ÷ t
14. sr
15. Jim is paid for overtime when he works more than 40 hours per week. a. Write an expression for the number of hours he works overtime when he works h hours.
b. Find the number of hours Jim works overtime when he works 40, 44, 48, and 52 hours.
1.1.2 Adding and Subtracting Real Numbers Add or subtract using a number line. 16. − 2 + 6 17. 6 + ( − 2) 18. −
19. − + 2 5
1 4
6
12
35
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