Solving Two-Step Word Problems: Double Subtraction with Seats

Understanding the Problem

• 🎯 The problem involves a movie theater with a total of 614 seats.
• 💡 We are given that 137 seats are red and 228 seats are yellow.
• ❓ The goal is to find the number of seats that are green, which are the remaining seats.

Strategy for Finding Green Seats

• 🧠 The strategy is to subtract the number of red and yellow seats from the total number of seats to find the number of green seats.
• ➕ Alternatively, one could first find the total number of red and yellow seats by adding them together, and then subtract that sum from the total seats.
• ➡️ The calculation required is: Total Seats - Red Seats - Yellow Seats = Green Seats.

Step-by-Step Calculation

• 🔢 First, subtract the red seats from the total: 614 - 137.
• 🧮 To perform 614 - 137, regrouping is necessary. Borrowing from the tens and hundreds places allows for subtraction in each place value, resulting in 477.
• 🔢 Next, subtract the yellow seats from the remaining total: 477 - 228.
• 🧮 Again, regrouping is needed. Subtracting 228 from 477 yields 249.

Final Answer

• ✅ The number of green seats in the theater is 249.