Interpret and Evaluate Algebraic Expressions

Perry has 17 fewer baseball cards than Pete.

If b represents the number of cards Pete has, write an expression for how many baseball cards Perry has.

• b + 17

• b -17

• 17 - b

• 17 + b

Mary baked some cookies on Saturday. On Sunday she baked twice as many cookies as the day before. If c represents the number of cookies she made on Saturday, write an expression for the number of cookies she made on Sunday.

• c + 2

• c - 2

• c / 2

• 2c

Students brought in 300 canned goods for the food drive on Monday. On Tuesday students brought in x more cans. Write an expression for how many total canned goods the students brought in.

• 300 + x

• 300 - x

• 300x

• x - 300

Translate:

42 less than a number x

• 42 - x

• x - 42

• 42 + x

• 42x

Translate:

12 fewer pencils than the number of pencils, p, in my desk

• 12 - p

• p - 12

• p + 12

• 12p

Translate:

4 more than three times the amount of c candy bars

• 3c + 4

• 3c - 4

• 4c + 3

• 4c - 3

Evaluate 4a if a=5

• 45

• 9

• 20

• 95

Evaluate 3x + 8 if x = 2

• 13

• 14

• 15

• 16

Evaluate 2n + 7 if

n = 5

• 39

• 17

• 24

• 27

Jacob made 24 friendship bracelets. He gave p bracelets to his friends. Which expression represents the number of friendship bracelets Jacob has left?

• 24 - p

• p - 24

• p/24

• 24/p