# Writing expressions

3 videos

3 skills

In this tutorial, we will learn to describe situations using mathematical expressions, and consider the effect of using parentheses in the outcome of those expressions.

### Constructing numerical expressions

VIDEO
1:22 minutes

This word problem can be solved by constructing a numerical expression. Can you help? We bet you can!

### Evaluating expressions with and without parentheses

VIDEO
2:06 minutes

So maybe parentheses don't seem like a big deal? Check out this problem and the difference in the answer when you work it without the parentheses. Wow.

### Evaluating expressions with parentheses

PRACTICE PROBLEMS

Solve multi-step expressions with parentheses. Place parentheses in an expression to make the expression equivalent to a given number.

### Translating expressions with parentheses

VIDEO
9:11 minutes

Interpret written statements, and write them as mathematical expressions.

### Translating expressions with parentheses

PRACTICE PROBLEMS

Practice changing expressions from words to math.

### Creating expressions with parentheses

PRACTICE PROBLEMS

Practice creating expressions with parentheses from real-world contexts.