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Math – Addition with Regrouping

Math · CCSS: 3.NBT.A.2 · Level 3 · Worksheet 2 of 5 · Practice Set 7

Level 3 ⭐⭐⭐

1 What is Regrouping?

📦 When the ones column adds up to 10 or more, you "regroup" (carry) to the tens column.

Example: 27 + 15

Step 1: Add the ones: 7 + 5 = 12 → Write 2, carry the 1

Step 2: Add the tens: 2 + 1 + 1(carried) = 4 → Answer: 42

Try these step by step:

2 Practice: Does it Need Regrouping?

🤔 First decide: does this problem need regrouping? Then solve.

3 Word Problems with Regrouping

📝 Solve each word problem. Show your work!

Problem	Equation	Answer
The team packed 26 sandwiches and 48 juice boxes for the picnic. How many items in all?
Nina scored 37 points in level one and 56 points in level two. How many points in all?
A farmer picked 45 apples and 39 pears. How many fruits did the farmer pick?

4 Challenge: Three Addends

🏆 Add three numbers together. You may need to regroup more than once!

5 Explain Your Thinking (SBA Practice)

Show your work and explain how you solved the problem. On the state test, you will need to explain your reasoning.

Problem: Sam has 347 stickers. He gets 285 more. How many stickers does Sam have now? Show your regrouping.

My work:

My answer:

How I know my answer is correct:

+ Bonus Math Practice

Try one extra round for Set 7.

35 + 6 =

42 - 4 =

5 × 8 =