Free preview · Pre-Algebra
Pre-Algebra
Combine like terms with algebra tiles: build the expression, group the tiles, and check your answer.
Combining like terms
Tidy an expression by adding up its x-terms and its constants separately.
Difficulty1
Setting up a problem…
In the full course
- Ten units on a quest map, from integers to slope and statistics
- Endless fresh problems on every skill, at five difficulty levels
- Number lines, fraction bars, tape diagrams and more
- XP, streaks and mastery that track your progress