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Number Regrouping and Renaming

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Number Regrouping and Renaming

📚 Part 1: Breaking Apart Numbers

1. Break apart 47 into tens and ones:

47 = _____ tens + _____ ones

2. Show 63 in a different way:

63 = 5 tens + _____ ones

3. Fill in the missing numbers:

85 = 7 tens + _____ ones

85 = 6 tens + _____ ones

4. Which shows 52 in a different way?

5 tens + 2 ones

4 tens + 12 ones

6 tens + 2 ones

🔄 Part 2: Regrouping Practice

5. Regroup to solve: 34 + 28
6. Sarah has 3 tens and 14 ones. How can she regroup?

3 tens + 14 ones = _____ tens + _____ ones

7. Circle all the ways to show 76:

7 tens + 6 ones

6 tens + 16 ones

8 tens + 6 ones

5 tens + 26 ones

8. Tom counted 2 tens and 17 ones. What number did he count?

✏️ Part 3: Word Problems

9. Emma has 4 bundles of 10 sticks and 15 single sticks. She makes one more bundle of 10. How many bundles and single sticks does she have now?
10. Write the number 91 in three different ways using tens and ones:

Way 1: _____ tens + _____ ones

Way 2: _____ tens + _____ ones

Way 3: _____ tens + _____ ones

📋 Answer Sheet

1. 4 tens + 7 ones

2. 13 ones

3. 15 ones; 25 ones

4. 4 tens + 12 ones

5. 62 (3 tens + 14 ones = 4 tens + 4 ones, then 4 + 4 = 8, 3 + 2 + 1 = 6)

6. 4 tens + 4 ones

7. 7 tens + 6 ones; 6 tens + 16 ones; 5 tens + 26 ones

8. 37

9. 5 bundles and 5 single sticks (or 5 tens + 5 ones = 55)

10. Possible answers: 9 tens + 1 one; 8 tens + 11 ones; 7 tens + 21 ones

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