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To solve this problem, we will follow these steps:
Step 1: Align the numbers vertically by place value. We have:
Step 2: Start from the rightmost digits in the units column. Add (from the bottom number) to (from the top number).
Step 3: Now, move to the next column. We have in the tens column only from the top number, so it's .
Step 4: Combine the sums from each column starting from the left to form the final answer: .
Therefore, the solution to the problem is , which corresponds to choice 4.
14
\( \begin{aligned} &12 \\ +& \\ &~~2 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
Proper alignment ensures you're adding like place values together. Units go with units, tens with tens. Without alignment, you might accidentally add a units digit to a tens digit!
That's normal! Just imagine invisible zeros in the empty places. For example, 2 is really 02, so you add 0 + 1 = 1 in the tens column.
Yes, always! Start from the rightmost column (units) and work left. This helps you handle any carrying that might be needed in more complex problems.
Try adding the numbers horizontally (12 + 2) or use a different order. You can also use mental math: 12 + 2 is like counting up 2 from 12.
It doesn't matter which number goes on top in addition! gives the same answer as . Choose whatever feels easier to you.
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