Two-Digit Subtraction Word Problems: Step-by-Step Solutions

Understanding Two-Digit Subtraction Word Problems 🧮

Two-digit subtraction word problems involve subtracting one two-digit number from another, often presented within a real-world scenario. Solving these problems requires careful reading, understanding the context, and applying subtraction techniques. Let's break down the process with step-by-step solutions.

Step 1: Read and Understand the Problem 📖

• Carefully read the entire word problem.
• Identify what the problem is asking you to find.
• Determine the key information (numbers) needed to solve the problem.

Step 2: Identify the Numbers and Operation 🔢

• List the two-digit numbers given in the problem.
• Decide if the problem requires subtraction (keywords: difference, less than, take away, how many more).

Step 3: Set Up the Subtraction Problem ✍️

• Write the larger number on top.
• Write the smaller number below it, aligning the ones and tens places.

  Tens Ones
   4   5
-  2   3
  ------

Step 4: Perform the Subtraction ➖

• Subtract the ones place first.
• Subtract the tens place next.
• If necessary, borrow from the tens place.

Step 5: Check Your Answer ✅

• Review your work to ensure accuracy.
• Use addition to check if your subtraction is correct (the answer plus the smaller number should equal the larger number).
• Make sure your answer makes sense in the context of the word problem.

Example 1: Simple Subtraction 💡

Problem: Sarah has 45 stickers. She gives 23 stickers to her friend. How many stickers does Sarah have left?

1. Numbers: 45 and 23
2. Operation: Subtraction

  45
- 23
  ---
  22

Answer: Sarah has 22 stickers left.

Example 2: Subtraction with Borrowing 🤝

Problem: A farmer has 62 apples. He sells 28 apples at the market. How many apples does the farmer have left?

1. Numbers: 62 and 28
2. Operation: Subtraction with borrowing

  5 12  (Borrow 1 from the tens place)
  62
- 28
  ---
  34

Answer: The farmer has 34 apples left.

Example 3: Word Problem with Context 🌍

Problem: John has 71 marbles. He loses 35 marbles during a game. How many marbles does John have now?

1. Numbers: 71 and 35
2. Operation: Subtraction with borrowing

   6 11  (Borrow 1 from the tens place)
   71
-  35
  ----
   36

Answer: John has 36 marbles now.

Practice Problems 🏋️‍♀️

1. A bakery makes 85 cupcakes. They sell 47 cupcakes. How many cupcakes are left?
2. Lisa has 53 beads. She uses 26 beads to make a necklace. How many beads does Lisa have remaining?
3. A school has 92 students. 38 students are absent today. How many students are present?

Conclusion 🎉

By following these step-by-step solutions, you can confidently tackle two-digit subtraction word problems. Remember to read carefully, identify the numbers and operation, and double-check your work. Happy subtracting!