PA-U2.2 Lesson: One Step Word Problems Add/Sub.

Multiple Choice

ACT Prep: Warm-Up

"The difference between an number and 21 is 8."

What is the value of the unknown in this math statement?

• 29

• 13

• 168

• -13

Unit 2 Lesson 2a:
One Step equation Word Problems w/ Add/Sub

goal:

Students are going to solve real world problems by writing one step equations of addition and subtraction.

​Procedures:

1) Read the problem closely.
2) Determine what is being asked for.
3) Write an equation to model the situation.
4) Solve.
5) Check your result to ensure it makes sense in the problem.

Reorder

Reorder the following steps used to solve one step word problems.

• Read the problem closely.

• Determine what is being asked for.

• Write an equation to model the situation.

• Solve.

• Check your result to ensure it makes sense in the problem.

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

example 1:

Jack and Sofia collected cans for their school recycling drive. Jack collected 316 cans. Sofia collected 226 cans. How many cans did they collect altogether?

example 2:

James read for 223 minutes this weekend. Lily read for 416 minutes. How many more minutes did Lily read than James?

example 3:

Robert had $76. After he cleaned out the garage for his mom, he had $130. How much money did Robert earn for cleaning out the garage?