Name: __________________________________ Date: ___________________ Hour: ___________
Lesson 1.3 – Writing Algebraic Expressions
Give two ways to write each algebraic expression.
1.)
15 − b
2.)
x
16
3.)
x +9
4.)
(2)(t )
5.)
z−7
6.)
4y
7.)
6÷x
8.)
3+x
Write the phrase as an expression.
9.)
the sum of a number y and 4
10.) the difference of a number s and 6
11.) twice a number z
12.) the quotient of 18 and a number a
13.) 3 less than the quotient of a number y
and 4
14.) 6 more than the product of 8 and a number x
Describe and create the error in writing the phrase as an algebraic expression.
15.) the quotient of 8 and a number y
16.) 16 decreased by a number x
Define a variable and write an algebraic expression for each situation.
17.) Sophie’s math class has 6 fewer boys than girls, and there are g girls. Write an expression for
the number of boys.
18.) A computer printer can print 10 pages per minute. Write an expression for the number of pages
the printer can print in m minutes.
19.) George drives at 45 mi/h. Write an expression for the number of miles George travels in h hours.
20.) The length of a rectangle is 4 units greater than its width w. Write an expression for the length of
the rectangle.
21.) Friday’s temperature was 20° warmer than Monday’s temperature t. Write an expression for
Friday’s temperature.
22.) Ann sleeps 8 hours per night. Write an expression for the number of hours Ann sleeps in n
nights.
23.) It costs $3 to bowl a game and $2 for shoe rental. Write an expression for the cost of bowling
any number of games g.
24.) There are 140 people in a singing competition. The graph
shows the results for the first five rounds. Write an expression
for the number of people after each round r.