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Math – Addition with Regrouping

Math · CCSS: 3.NBT.A.2 · Level 3 · Worksheet 2 of 5 · Practice Set 10
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
26 + 17
31 + 49
48 + 29
2 Practice: Does it Need Regrouping?
🤔 First decide: does this problem need regrouping? Then solve.
Problem Regrouping? (Y/N) Answer
14 + 17
28 + 34
46 + 25
52 + 26
19 + 18
37 + 24
3 Word Problems with Regrouping
📝 Solve each word problem. Show your work!
Problem Equation Answer
A pond has 38 tadpoles and 54 minnows. How many animals live in the pond?
Ruby strung 47 white beads and 46 pink beads. How many beads did she string?
The snack stand sold 59 pretzels and 35 lemonades. How many items were sold?
4 Challenge: Three Addends
🏆 Add three numbers together. You may need to regroup more than once!
Problem Answer
13 + 24 + 19 =
22 + 17 + 26 =
18 + 29 + 15 =
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 10.
50 + 6 =
57 - 4 =
5 × 11 =
⭐ Great job with math today!
Math · Level 3 · Worksheet 2
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