Add 83 + 6: Vertical Format Addition Practice

Q: Why do I need to line up the numbers vertically?

Lining up numbers by place value ensures you're adding ones to ones and tens to tens. Without proper alignment, you might accidentally add a ones digit to a tens digit!

Q: How do I know which digit goes where?

Remember: the rightmost digit is always the ones place. Line up all ones digits in a column, then tens digits in the next column to the left.

Q: Can I add from left to right instead?

While possible, it's much easier to add from right to left (ones first, then tens) because this handles any carrying more naturally.

Q: What if I get confused about which number is on top?

It doesn't matter! Addition is commutative, meaning 83 + 6 gives the same answer as 6 + 83. Put the larger number on top if it helps you visualize better.

Two-Digit Addition with Single-Digit Numbers

$\begin{aligned} &83 \\ +& \\ &~~6 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

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Step-by-step video solution

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Step-by-step written solution

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Understand the problem

$\begin{aligned} &83 \\ +& \\ &~~6 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

Step-by-step solution

To solve this problem, we need to perform vertical addition of the numbers $83$ and $6$ .

Let's work through the problem step-by-step:

Write the numbers vertically, aligning them by place value:
83
+ 6
First, add the digits in the ones place:
3 (from 83) + 6 = 9
Next, add the digits in the tens place (given no carry was needed):
8 (from 83) + 0 (implicit from 6) = 8
Combine the results of those sums, which gives us the final result as:

$89$ .

Therefore, the solution to the problem is $89$ , which corresponds to the choice: :

Final Answer

Key Points to Remember

Essential concepts to master this topic

Alignment: Line up numbers by place value before adding
Technique: Add ones first (3 + 6 = 9), then tens (8 + 0 = 8)
Check: Verify 89 by counting up from 83: 84, 85, 86, 87, 88, 89 ✓

Common Mistakes

Avoid these frequent errors

Adding without proper place value alignment
Don't just add 83 + 6 = 836 by writing numbers side by side! This treats 6 as 60 and gives a completely wrong result. Always align the ones digit of 6 under the ones digit of 83 before adding.

Practice Quiz

Test your knowledge with interactive questions

$\begin{aligned} &90 \\ +& \\ &~~9\\ &\underline{\phantom{776}} & \\ \end{aligned}$

FAQ

Everything you need to know about this question

Why do I need to line up the numbers vertically?

Lining up numbers by place value ensures you're adding ones to ones and tens to tens. Without proper alignment, you might accidentally add a ones digit to a tens digit!

What if the single-digit number is larger than the ones digit in the two-digit number?

No problem! Just add normally. For example, if you had 81 + 9, you'd get 1 + 9 = 10, so write down 0 and carry the 1 to the tens place.

How do I know which digit goes where?

Remember: the rightmost digit is always the ones place. Line up all ones digits in a column, then tens digits in the next column to the left.

Can I add from left to right instead?

While possible, it's much easier to add from right to left (ones first, then tens) because this handles any carrying more naturally.

What if I get confused about which number is on top?

It doesn't matter! Addition is commutative, meaning 83 + 6 gives the same answer as 6 + 83. Put the larger number on top if it helps you visualize better.

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