Problem Description:
The task involves solving a series of
2-digit addition problems without regrouping (carrying over). Each problem consists of adding two 2-digit numbers, and the goal is to compute the sums accurately.
Solution Approach:
1.
Understand the Task: The problems are straightforward additions of two 2-digit numbers. Since the instruction specifies "No Regrouping," we assume that none of the additions will require carrying over digits from one column to another.
2.
Solve Each Problem: We will add the numbers in each row separately, ensuring no regrouping occurs.
3.
Verify the Results: Double-check each addition to ensure accuracy.
Step-by-Step Solution:
#### First Row:
-
30 + 2 = 32
-
32 + 23 = 55
-
24 + 15 = 39
-
56 + 22 = 78
#### Second Row:
-
18 + 11 = 29
-
37 + 30 = 67
-
30 + 12 = 42
-
43 + 14 = 57
#### Third Row:
-
61 + 22 = 83
-
45 + 44 = 89
-
69 + 20 = 89
-
71 + 28 = 99
#### Fourth Row:
-
50 + 38 = 88
-
81 + 11 = 92
-
67 + 22 = 89
-
50 + 39 = 89
Final Answers:
Combining all the results, we get:
```
32 55 39 78
29 67 42 57
83 89 89 99
88 92 89 89
```
Explanation:
- Each addition was performed by simply summing the digits in the ones place and the tens place separately.
- No regrouping was necessary, as per the problem's instructions.
Final Answer:
$$
\boxed{
\begin{array}{cccc}
32 & 55 & 39 & 78 \\
29 & 67 & 42 & 57 \\
83 & 89 & 89 & 99 \\
88 & 92 & 89 & 89 \\
\end{array}
}
$$
Parent Tip: Review the logic above to help your child master the concept of double digit addition worksheet without regrouping.
