Adding with Carrying

🎯 What You'll Learn

You will learn what to do when the ones digits add up to more than 9. This is called carrying or regrouping.

🏪 Market Story

Funke buys bread for ₦45 and eggs for ₦27. She adds the ones: 5 + 7 = 12. But 12 is more than 9! She can't put 12 in the ones place. She needs to "carry" the extra ten over to the tens column. Let's see how.

📝 Let's Learn

When the ones add up to 10 or more, we carry 1 ten to the tens column.

Step-by-step for ₦45 + ₦27:

1. Add the ones: 5 + 7 = 12. Write down 2 in the ones place, carry 1 to the tens.
2. Add the tens: 4 + 2 = 6, plus the carried 1 = 7. Write 7 in the tens place.
3. Answer: ₦72.

Example 1: ₦38 + ₦25. Ones: 8 + 5 = 13, write 3 carry 1. Tens: 3 + 2 + 1 = 6. Answer: ₦63.

Example 2: ₦56 + ₦17. Ones: 6 + 7 = 13, write 3 carry 1. Tens: 5 + 1 + 1 = 7. Answer: ₦73.

Example 3: ₦49 + ₦34. Ones: 9 + 4 = 13, write 3 carry 1. Tens: 4 + 3 + 1 = 8. Answer: ₦83.

✏️ Practice Questions

1. ₦28 + ₦15 = ?
2. ₦37 + ₦46 = ?
3. Bola buys a notebook for ₦65 and crayons for ₦28. What is the total?

Click to see answers

1. ₦28 + ₦15 = ₦43. Ones: 8 + 5 = 13, write 3 carry 1. Tens: 2 + 1 + 1 = 4.
2. ₦37 + ₦46 = ₦83. Ones: 7 + 6 = 13, write 3 carry 1. Tens: 3 + 4 + 1 = 8.
3. ₦65 + ₦28 = ₦93. Ones: 5 + 8 = 13, write 3 carry 1. Tens: 6 + 2 + 1 = 9.

💡 Remember

When ones add up to 10 or more, write down the ones digit and carry 1 to the tens column. Don't forget to add the carried 1!