Problem Description:
The task involves solving a series of two-digit addition problems. Each problem requires adding two two-digit numbers, and the results are expected to be greater than 100 in some cases.
Solution Approach:
We will solve each addition problem step by step, ensuring accuracy. Let's go through each problem:
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Problem 1: \( 30 + 75 \)
- Add the tens place: \( 30 + 70 = 100 \)
- Add the ones place: \( 0 + 5 = 5 \)
- Combine: \( 100 + 5 = 105 \)
Answer: \( 105 \)
---
####
Problem 2: \( 40 + 66 \)
- Add the tens place: \( 40 + 60 = 100 \)
- Add the ones place: \( 0 + 6 = 6 \)
- Combine: \( 100 + 6 = 106 \)
Answer: \( 106 \)
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Problem 3: \( 20 + 84 \)
- Add the tens place: \( 20 + 80 = 100 \)
- Add the ones place: \( 0 + 4 = 4 \)
- Combine: \( 100 + 4 = 104 \)
Answer: \( 104 \)
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Problem 4: \( 60 + 49 \)
- Add the tens place: \( 60 + 40 = 100 \)
- Add the ones place: \( 0 + 9 = 9 \)
- Combine: \( 100 + 9 = 109 \)
Answer: \( 109 \)
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Problem 5: \( 10 + 91 \)
- Add the tens place: \( 10 + 90 = 100 \)
- Add the ones place: \( 0 + 1 = 1 \)
- Combine: \( 100 + 1 = 101 \)
Answer: \( 101 \)
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Problem 6: \( 90 + 13 \)
- Add the tens place: \( 90 + 10 = 100 \)
- Add the ones place: \( 0 + 3 = 3 \)
- Combine: \( 100 + 3 = 103 \)
Answer: \( 103 \)
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Problem 7: \( 80 + 26 \)
- Add the tens place: \( 80 + 20 = 100 \)
- Add the ones place: \( 0 + 6 = 6 \)
- Combine: \( 100 + 6 = 106 \)
Answer: \( 106 \)
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Problem 8: \( 60 + 41 \)
- Add the tens place: \( 60 + 40 = 100 \)
- Add the ones place: \( 0 + 1 = 1 \)
- Combine: \( 100 + 1 = 101 \)
Answer: \( 101 \)
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Problem 9: \( 50 + 54 \)
- Add the tens place: \( 50 + 50 = 100 \)
- Add the ones place: \( 0 + 4 = 4 \)
- Combine: \( 100 + 4 = 104 \)
Answer: \( 104 \)
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Problem 10: \( 30 + 72 \)
- Add the tens place: \( 30 + 70 = 100 \)
- Add the ones place: \( 0 + 2 = 2 \)
- Combine: \( 100 + 2 = 102 \)
Answer: \( 102 \)
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Problem 11: \( 80 + 27 \)
- Add the tens place: \( 80 + 20 = 100 \)
- Add the ones place: \( 0 + 7 = 7 \)
- Combine: \( 100 + 7 = 107 \)
Answer: \( 107 \)
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Problem 12: \( 70 + 36 \)
- Add the tens place: \( 70 + 30 = 100 \)
- Add the ones place: \( 0 + 6 = 6 \)
- Combine: \( 100 + 6 = 106 \)
Answer: \( 106 \)
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Final Answers:
1. \( 105 \)
2. \( 106 \)
3. \( 104 \)
4. \( 109 \)
5. \( 101 \)
6. \( 103 \)
7. \( 106 \)
8. \( 101 \)
9. \( 104 \)
10. \( 102 \)
11. \( 107 \)
12. \( 106 \)
Boxed Final Answer:
\[
\boxed{105, 106, 104, 109, 101, 103, 106, 101, 104, 102, 107, 106}
\]
Parent Tip: Review the logic above to help your child master the concept of addition and subtraction worksheet level 2.
