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Math – Addition with Regrouping

Math · CCSS: 3.NBT.A.2 · Level 3 · Worksheet 2 of 5 · Practice Set 6
Level 3 ⭐⭐⭐
Practice SetsSet 1Set 2Set 3Set 4Set 5Set 6Set 7Set 8Set 9Set 10
Name:
Date:
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:
Problem Ones (+ carry?) Tens Answer
29 + 14
47 + 26
58 + 25
2 Practice: Does it Need Regrouping?
🤔 First decide: does this problem need regrouping? Then solve.
Problem Regrouping? (Y/N) Answer
17 + 26
34 + 21
48 + 39
63 + 14
25 + 17
36 + 36
3 Word Problems with Regrouping
📝 Solve each word problem. Show your work!
Problem Equation Answer
Ava counted 47 seagulls and 36 crabs at the beach. How many animals did she count?
A store sold 58 balloons in the morning and 27 in the afternoon. How many balloons in all?
Sam collected 65 acorns and found 19 more. How many acorns does he have?
4 Challenge: Three Addends
🏆 Add three numbers together. You may need to regroup more than once!
Problem Answer
19 + 17 + 15 =
21 + 26 + 28 =
33 + 14 + 23 =
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 6.
30 + 6 =
37 - 4 =
5 × 7 =
⭐ Great job with math today!
Math · Level 3 · Worksheet 2
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