Solve Basic Addition: Calculate 0 + 99

Q: Why doesn't 0 + 99 equal 0?

Because addition and multiplication work differently! When you add zero, the number stays the same. Only when you multiply by zero does everything become zero.

Q: Does it matter if zero comes first or second?

Not at all! Addition is commutative, which means $ 0 + 99 = 99 + 0 = 99 $. The order doesn't change the answer.

Q: Is this the same as 99 - 0?

Yes! Both $ 99 + 0 $ and $ 99 - 0 $ equal 99. Adding zero or subtracting zero from a number leaves it unchanged.

Q: Why is this concept important?

Understanding the identity property helps with mental math and algebra! It's one of the fundamental rules that makes mathematics work consistently.

Identity Property with Zero Addition

$0+99=$

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Step-by-step video solution

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00:00 Solve

00:03 Any number plus 0 equals the number itself

00:10 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

$0+99=$

Step-by-step solution

To solve this problem, we will apply the identity property of addition. This property states that adding zero to any number will result in the number itself. In mathematical terms, the identity property for addition is expressed as:

$a + 0 = a$

where $a$ represents any real number.

Now, we can apply this property to our specific problem:

Step 1: Identify the two numbers involved in the operation: 0 and 99.
Step 2: Apply the identity property: $99 + 0 = 99$ .
Step 3: Simplify the expression: $99$ .

By applying the identity property of addition, we find that the expression $0 + 99$ is equal to 99.

Therefore, the correct answer to the problem is $99$ .

Final Answer

Key Points to Remember

Essential concepts to master this topic

Identity Property: Adding zero to any number equals that same number
Technique: Recognize $0 + 99 = 99$ using the additive identity
Check: Verify that zero changes nothing: $99 + 0 = 99$ ✓

Common Mistakes

Avoid these frequent errors

Thinking zero makes everything zero
Don't confuse addition with multiplication! $0 + 99 ≠ 0$ because zero only makes products equal zero, not sums. Addition with zero preserves the original number. Always remember: adding zero changes nothing, multiplying by zero makes everything zero.

Practice Quiz

Test your knowledge with interactive questions

$1\times1000=$

FAQ

Everything you need to know about this question

Why doesn't 0 + 99 equal 0?

Because addition and multiplication work differently! When you add zero, the number stays the same. Only when you multiply by zero does everything become zero.

What is the identity property of addition?

The identity property says that adding zero to any number gives you that same number back. Zero is called the 'additive identity' because it doesn't change the value: $a + 0 = a$ .

Does it matter if zero comes first or second?

Not at all! Addition is commutative, which means $0 + 99 = 99 + 0 = 99$ . The order doesn't change the answer.

Is this the same as 99 - 0?

Yes! Both $99 + 0$ and $99 - 0$ equal 99. Adding zero or subtracting zero from a number leaves it unchanged.

Why is this concept important?

Understanding the identity property helps with mental math and algebra! It's one of the fundamental rules that makes mathematics work consistently.

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