1.1.1 Variables and Expressions − Worksheet

Example 1:

Give two ways to write each algebraic expression in words. 1. n − 5 2. f 3 3. c + 15

4. 9 − y

5. x

6. t + 12

7. 8 x

8. x − 3

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Example 2:

9. George drives at 45 mi/h. Write an expression for the number of miles George travels in h hours.

10. The length of a rectangle is 4 units greater than its width w . Write an expression for the length of the rectangle.

Example 3:

Evaluate each expression for a = 3, b = 4, and c = 2. 11. a − c 12. ab

13. b ÷ c

14. ac

Example 4:

15. Brianna practices the piano 30 minutes each day. a. Write an expression for the number of hours she practices in d days.

b. Find the number of hours Brianna practices in 2, 4, and 10 days.

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