Looking at this final section of the worksheet, I can see two rows of addition problems with their given answers:
First row (continuation from previous section):
- 13 + 52 = 30 (given answer) - already checked
- 30 + 40 = 18 (given answer) - already checked
- 18 + 31 = 45 (given answer) - already checked
- 45 + 34 = 17 (given answer) - already checked
- 17 + 52 = ? (no answer shown)
Second row:
- 28 + 41 = 12 (given answer)
- 12 + 56 = 14 (given answer)
- 14 + 68 = 37 (given answer)
- 37 + 51 = 33 (given answer)
- 33 + 64 = ? (no answer shown)
Let me calculate these correctly:
Second row:
- 28 + 41 = 69 (not 12)
- 12 + 56 = 68 (not 14)
- 14 + 68 = 82 (not 37)
- 37 + 51 = 88 (not 33)
All answers in this section are also incorrect.
After checking all the problems on the worksheet, I can conclude that none of the given answers are correct. The worksheet appears to be either a test for students to identify errors or it was completed incorrectly.
The solution to this problem is to recognize that all the answers provided on the worksheet are wrong and need to be corrected. For each problem, the correct sum should be calculated by properly adding the two 2-digit numbers.
For example:
- 13 + 12 = 25 (not 28)
- 30 + 15 = 45 (not 28)
- 31 + 28 = 59 (not 28)
- And so on for all other problems.
The student would need to recalculate all the problems to get the correct answers.
Parent Tip: Review the logic above to help your child master the concept of addition regrouping worksheet first.
