Writing Equations to Solve Real World Addition and Subtraction Problems

The video tutorial explains how to solve real-world problems using equations. It begins with an introduction to equations and variables, followed by a structured plan for tackling word problems. Two examples are provided: one involving a marathon runner calculating remaining miles, and another about determining the initial amount of birthday money after a purchase. The video emphasizes defining variables, choosing appropriate operations, solving equations, and verifying solutions.

What is the first step in solving a word problem involving equations?

• Solve the equation

• Write the equation

• Define the variable

• Choose the operation

In the example of Claire's marathon training, what does the variable M represent?

• The total miles Claire has run

• The miles Claire wants to run by Friday

• The miles Claire has run so far

• The miles Claire must run tomorrow

How many miles does Claire need to run by tomorrow to reach her goal?

• 8 miles

• 9 miles

• 7 miles

• 6 miles

In Carmen's example, what operation is used to find out the initial amount of birthday money?

• Addition

• Division

• Multiplication

• Subtraction

How much birthday money did Carmen's mom give her?

• $22

• $20

• $18

• $15