Writing algebraic expressions
Writing algebraic expressions
Writing Verbal Expressions
Evaluating Expressions
& Equivalent Expressions
Evaluating Expressions
100
Write an expression for the product of 3 and w.
What is 3w?
100

The sum of 27 and a number n.

27 + n

100

Write n + 16 in words. (use sum, difference, product, or quotient)

the sum of n and 16

100

3a^2 - 4

when a=-1

-1

100
Evaluate when p = 6. p + 9
What is 15?
200
Write an expression for w less than 15.
What is 15 - w?
200
13 less than a number q.

q -13

200

4z (use sum, difference, product, or quotient)

the product of 4 and z

200

-(p - r) - 4

when p = 12 and r = -2

-18

200
Evaluate the expression for 8 - g when g is 3.
What is 5?
300
Write an expression for the difference of twice p and 9.
What is 2p - 9?
300

The sum of t and the product of 4 and x

t + 4x

300

d-6 (use sum, difference, product, or quotient)

the difference of d and 6

300

7(n+4) when n=4

7(4+4) = 56

300

-63/7

-9

400

Mrs. Kramer goes to the movie with her friends. She buys tickets for $6.50 each and popcorn for that costs $2 a bag. Write an expression that models the amount of money Mrs. Kramer spent. Identify the variables in the problem. (Double points if you get both correct!)

What is t= unknown # of tickets Ms. Kramer buys p= unknown # of bags of popcorn purchased 

$6.50t + $2p

400

the quotient of a number and 4.

n/4

400

r/6 (use sum, difference, product, or quotient)

the quotient of r and 6

400

(24/4 -c) * a when a=5 and c=1

(24/4 - 1) * 5 = 25

400

-2 /( 1/4)

-8

500
Write an expression for the difference of r and 8 times 9.
What is the difference of 9(r - 8) or (r - 8) * 9?
500

the cost of p photocopies if each one costs $0.15

.15p

500

6r-5

the difference of 6 times r and 5

500

(30/b) + 9 when b =6

(30/6) + 9 = 14

500
Evaluate the expression 3(x + 4) - w, when x is 3 and w is 8.
What is 13?
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