Lessons

Represent unknown numbers using symbols or letters
In this lesson you will learn how to represent an unknown number in an equation by using a symbol or a letter.

Solve multiplicative comparison word problems by using bar models
In this lesson you will learn how to solve word problems with multiplicative comparison by using bar models.

Solve multiplicative comparison word problems by using a multiplication sentence
In this lesson you will learn how to solve multiplicative comparison word problems by using a multiplication sentence.

Solve multiplicative comparison word problems using multiplication or division
In this lesson you will learn how to solve a multiplicative comparison word problem by using multiplication or division.