Shopping with Sara (Solve multistep word problems by using equations with a letter for the unknown)

The video tutorial guides viewers through solving a word problem involving Sarah's need for school supplies. It explains how to calculate the total cost of notebooks, folders, and a pencil case by setting up and solving an equation. The tutorial emphasizes the importance of following the order of operations and demonstrates how to use a variable to represent an unknown value. By the end, viewers learn to solve multistep word problems using equations.

What items does Sarah need to buy for school?

• 5 notebooks, 3 folders, and 2 pencil cases

• 5 notebooks, 4 folders, and 1 pencil case

• 4 notebooks, 5 folders, and 1 pencil case

• 3 notebooks, 2 folders, and 1 pencil case

How much does one folder cost?

• $4

• $5

• $2

• $6

What is the equation used to calculate the total cost M?

• M = 5 * 6 + 4 * 5 + 2

• M = 5 * 2 + 4 * 5 + 6

• M = 5 + 4 + 6

• M = 5 * 5 + 4 * 2 + 6

What is the total cost of the school supplies?

• $30

• $36

• $40

• $42

Why is it important to follow the order of operations in the equation?

• To use all the numbers given

• To get the correct total cost

• To ensure the equation is balanced

• To make the equation easier to read