# One Step Equations:

Subtraction

### Students will learn how to solve one-step subtraction equations.

### Objectives:

• Students will review the steps to solving one-step addition equations.

• Students will learn how to solve one-step subtraction equations.

• Students will practice solving different equations for an unknown quantity.

• Students will practice solving equations using both addition and subtraction.

### Suggested Grades:

Sixth Grade - Seventh Grade - Eighth Grade - Ninth Grade - including special education students

Print the classroom lesson plan and worksheet questions (see below).

### Lesson Excerpt:

Review of Addition

-Note: The following review section can be spoken only by the teacher, but often in reviewing previously learned material, it may be helpful to allow students to "fill in" missing terms. Some options for allowing student input have been underlined. "Before we begin with new information today, let's review a little bit. We have been learning about solving one step equations."

- If we think about one-step equations using a scale, it is important that both sides of the scale balance. If we add new amounts to one side of the scale, then we have to add the same amount to the other side of the scale. Likewise, if we take an amount off one side of the scale, then we have to take the same amount off the other side of the scale or else the scale will not balance.

Continued...

## Lesson Printables:

Print this printable worksheet for this lesson: