Math 6 - Lesson 7.1B: Writing Algebraic Expressions

Write an algebraic expression for each of the following: The sum of 4 and p.

• 4p

• 4/p

• none of those

• 4 + p

Write an algebraic expression for each of the following: The difference “8 less than q”

• 8 - q

• 8 + q

• none of those

• 8 / q

Write an algebraic expression for each of the following: The product of 3 and r.

• 3r

• 3 + r

• none of those

• 3/r

Write an algebraic expression for each of the following: The quotient of s and 5

• 5s

• s/5

• none of those

• 5/s

Cheryl is now x years old. Her father is 24 years older than Cheryl. Find her father’s age in terms of x.

• x + 24

• x - 24

• 24x

• none of those

Cheryl is now x years old. Her brother is 2 years younger than Cheryl. Find her brother’s age in terms of x.

• x + 2

• x - 2

• 2x

• none of those

Cheryl is now x years old. Her sister is twice as old as Cheryl. Find her sister’s age in terms of x

• x/2

• x - 2

• 2x

• none of those

Cheryl is now x years old. Her cousin is 1/3

Cheryl’s age. Find her cousin’s age in terms of x.

• x/3

• 3x

• x + 1/3

• x - 1/3

Multiply k by 5, and then add 3 to the product.

• 3k + 5

• 3+ (k+5)

• none of those

• 5k + 3

Divide m by 7, and then subtract 4 from the quotient.

• 7m - 4

• m/4 - 7

• m/7 - 4

• 4 - m/7