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.