Real-World Examples of Subtraction with Borrowing for Grade 3

📚 Quick Study Guide

🔢 What is Subtraction with Borrowing? It's when you need to take away a larger number from a smaller number in a specific place value. You 'borrow' from the next higher place value. 💡 Steps for Borrowing:
• 1️⃣ Look at the digits in each column (ones, tens, hundreds, etc.).
• 2️⃣ If the top digit is smaller than the bottom digit, you need to borrow.
• 3️⃣ Borrow 1 from the digit to the left (the next higher place value). This reduces that digit by 1.
• 4️⃣ Add 10 to the digit you're borrowing for.
• 5️⃣ Now you can subtract!
➕ Example 1: $42 - 15$. You can't subtract 5 from 2, so borrow 1 from the 4 (tens place), making it 3. Add 10 to the 2, making it 12. Now subtract: $12 - 5 = 7$ and $3 - 1 = 2$. The answer is 27. ➕ Example 2: $134 - 28$. You can't subtract 8 from 4, so borrow 1 from the 3 (tens place), making it 2. Add 10 to the 4, making it 14. Now subtract: $14 - 8 = 6$ and $2 - 2 = 0$ and $1 - 0 = 1$. The answer is 106.

🧪 Practice Quiz

1. What is $53 - 26$?
• A) 37
• B) 27
• C) 33
• D) 23
2. Sarah has 61 stickers and gives 34 to her friend. How many stickers does Sarah have left?
• A) 37
• B) 27
• C) 95
• D) 33
3. What is $82 - 45$?
• A) 37
• B) 47
• C) 33
• D) 127
4. Tom had 74 marbles but lost 28. How many marbles does Tom have now?
• A) 56
• B) 46
• C) 102
• D) 36
5. What is $95 - 38$?
• A) 67
• B) 57
• C) 63
• D) 133
6. Emily baked 43 cookies and her brother ate 17. How many cookies are left?
• A) 36
• B) 26
• C) 60
• D) 50
7. What is $66 - 19$?
• A) 47
• B) 57
• C) 85
• D) 43