# Lesson Worksheet: Writing and Evaluating Algebraic Expressions Mathematics • 7th Grade

In this worksheet, we will practice writing algebraic expressions and evaluating them for specific values of their variables.

**Q2: **

Consider the shown trapezoid.

Write an expanded expression for its area. Simplify the expression, if possible.

- A
- B
- C
- D
- E

The given trapezoid is the cross section of a prism of length . Write an expanded expression for the volume of the prism. Simplify the expression, if possible.

- A
- B
- C
- D
- E

**Q3: **

Consider the shown trapezoid.

Write an expanded expression for its area. Simplify the expression, if possible.

- A
- B
- C
- D
- E

The given trapezoid is the cross section of the given prism of length .

Write an expanded expression for the volume of the prism. Simplify the expression, if possible.

- A
- B
- C
- D
- E

**Q5: **

Given that a day consists of 24 hours, write an expression that relates the number of days in terms of hours, and then determine how many hours there are in 3 days.

- A, 96 hours
- B, 72 hours
- C, 144 hours
- D, 27 hours
- E, 21 hours

**Q6: **

What is the area of a square of perimeter ?

- A
- B
- C
- D49
- E

**Q8: **

Write two equivalent expressions for the area of the following figure.

- A,
- B,
- C,
- D,
- E,

**Q9: **

Translate the following verbal expression into an algebraic one, and then simplify it: Four sets of the sum of a number and eleven are added to three times the same number.

- A,
- B,
- C,
- D,
- E,