🔢 Part 1: Two-Digit Addition with Regrouping

1. Solve these addition problems using the vertical method. Show your regrouping:

a) 47 + 29 = _______

b) 68 + 35 = _______

c) 56 + 47 = _______

2. Use place value partitioning to solve: 38 + 24

30 + 20 = _____ 8 + 4 = _____ Total = _____

3. Which addition problem needs regrouping? Circle your answer:

23 + 45

37 + 28

42 + 31

🎯 Part 2: Three-Digit Addition with Regrouping

4. Solve these three-digit addition problems. Show all your working:

a) 145 + 279 = _______

b) 238 + 167 = _______

c) 456 + 385 = _______

5. Estimate first, then solve: 194 + 256

My estimate: _______ (round to nearest 10)

Exact answer: _______

Was my estimate close? _______

6. At the school fair, Class A raised $184 and Class B raised $256. How much money did they raise altogether?

Working:

Answer: $ _______

7. Sarah collected 147 stickers and her friend gave her 89 more stickers. How many stickers does Sarah have now?

Working:

Answer: _______ stickers

8. Explain in your own words when you need to regroup in addition: