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HTO Addition Equations

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HTO Addition Equations

HTO Addition Equations

HTO addition worksheet illustration

🔢 Part 1: HTO Addition Problems

Instructions: Solve each addition equation by adding the ones, tens, and hundreds columns. Show your working in the space provided.

1. 234 + 156 = _______
2. 467 + 285 = _______
3. 329 + 147 = _______
4. 578 + 264 = _______
5. 193 + 428 = _______

📊 Part 2: Column Addition with Regrouping

Instructions: These problems require regrouping (carrying). Remember to regroup when a column adds to 10 or more.

6. 387 + 256 = _______
7. 495 + 368 = _______
8. 279 + 485 = _______
9. 567 + 298 = _______
10. 348 + 477 = _______

🎯 Part 3: Multiple Choice

Instructions: Circle the correct answer for each addition equation.

11. What is 245 + 132?

367

377

387

397

12. What is 456 + 287?

733

743

753

763

13. What is 629 + 195?

814

824

834

844

📝 Part 4: Word Problems

Instructions: Read each word problem carefully, write the equation, and solve using HTO addition.

14. A school library has 345 fiction books and 278 non-fiction books. How many books does the library have altogether?

Equation: _______ + _______ = _______

Answer: The library has _______ books altogether.

15. On Monday, 426 people visited the museum. On Tuesday, 389 people visited. How many people visited the museum over the two days?

Equation: _______ + _______ = _______

Answer: _______ people visited the museum over the two days.

16. A farmer harvested 567 apples from one orchard and 298 apples from another orchard. How many apples did the farmer harvest in total?

Equation: _______ + _______ = _______

Answer: The farmer harvested _______ apples in total.

🧠 Part 5: Challenge Problems

Instructions: These are more challenging HTO addition problems. Take your time and check your work.

17. 789 + 456 = _______
18. 693 + 578 = _______
19. Find the missing number: 347 + _______ = 825
20. Find the missing number: _______ + 294 = 761

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