+amp;74amp;amp; 6amp;776amp;
\( \begin{aligned} &74 \\ +& \\ &~~6 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
\( \begin{aligned} &12 \\ +& \\ &~~8 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
\( \begin{aligned} &45 \\ +& \\ &~~5 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
\( \begin{aligned} &23 \\ +& \\ &~~7 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
\( \begin{aligned} &81 \\ +& \\ &~~9 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
To solve this problem, we'll follow these steps:
Let's work through each step:
Step 1: Write the numbers vertically, aligning by place value:
Step 2: Add the ones place. The digit in the ones place of 74 is 4, and for 6 is 6. Add them together:
.
Since the result is 10, write down 0 in the ones place and carry over 1 to the tens place.
Step 3: Now, move to the tens place. Add the tens digit from 74, which is 7, and add the 1 carried over from the previous step:
.
This results in:
Therefore, the solution to the problem is .
80
To approach this problem, we'll use vertical addition of the numbers 12 and 8:
Therefore, the solution to the problem is .
20
To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: We start by adding the digits in the ones place: . Since is greater than , we write down in the ones place and carry over to the tens place.
Step 2: Then, add the tens place digits. The tens digit of 45 is 4, and we add the carried over 1: .
Step 3: Therefore, after adding, the complete sum is .
Thus, the solution to the problem is , which corresponds to choice 4.
50
To solve this problem, we will perform vertical addition as follows:
Step 1: Write the numbers in a column, aligning them by the right:
Step 2: Add the digits in the rightmost column (ones place):
The digits are 3 and 7. So, . Write 0 in the ones place and carry over 1 to the tens place.
Step 3: Add the digits in the tens place:
The digits are 2 and, due to the carry, 1. So, . Write 3 in the tens place.
Therefore, the sum of 23 and 7 is .
30
The problem is to perform vertical addition for the numbers and . Here’s the step-by-step approach:
Since no further carrying is necessary, the result of adding and is .
Therefore, the solution to the problem is , which corresponds to choice 2.
90
\( \begin{aligned} &67 \\ +& \\ &~~3 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
To solve this problem, we'll follow these steps:
Therefore, the solution to the problem is .
70