Solve the Subtraction Problem: 1150 minus 50

Q: How do I check if 1100 is the right answer?

Use addition to check subtraction! Add your answer to what you subtracted: $ 1100 + 50 = 1150 $. If you get the original number, you're correct!

Q: What if I get confused about which number goes first?

In subtraction, the first number is what you start with, and the second number is what you take away. So $ 1150 - 50 $ means "start with 1150, take away 50."

Q: Why can't the answer be 1200?

Because $ 1200 $ is bigger than 1150! When you subtract, your answer should be smaller than the number you started with (unless you're working with negative numbers).

Q: Is there a pattern when subtracting multiples of 10?

Yes! When subtracting multiples of 10 (like 10, 20, 30, 50), you only change the tens digit and everything to the left of it. The ones digit stays the same!

Basic Subtraction with Round Numbers

Calculate:

$1150-50=$

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Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

Calculate:

$1150-50=$

Step-by-step solution

To solve this problem, we will follow these steps:

Step 1: Identify the numbers involved, which are 1150 and 50.
Step 2: Perform the subtraction $1150 - 50$ .
Step 3: Interpret the result and match it with the given choices.

Now, let's calculate the subtraction:

Step 1: The numbers given are 1150 and 50.

Step 2: Subtract the second number from the first:

$1150 - 50 = 1100$ .

This result is straightforward, as it involves direct subtraction without the need for borrowing or further computation.

Step 3: From the choices provided, $1100$ is the correct solution and matches with choice 3.

Therefore, the correct answer is $1100$ .

Final Answer

$1100$

Key Points to Remember

Essential concepts to master this topic

Subtraction Rule: Remove the second number from the first number
Technique: Align digits by place value: $1150 - 50 = 1100$
Check: Add result to subtracted number: $1100 + 50 = 1150$ ✓

Common Mistakes

Avoid these frequent errors

Adding instead of subtracting
Don't add 1150 + 50 = 1200! This gives the wrong operation result. Always read the problem carefully and identify the minus sign. Always perform subtraction when you see the minus symbol.

Practice Quiz

Test your knowledge with interactive questions

Choose the correct answer:

$693+705=\text{ ?}$

FAQ

Everything you need to know about this question

Why is subtracting round numbers like 50 easier?

Round numbers like 50 are easier because they end in zero! When you subtract 50 from any number, you're just taking away 5 from the tens place. No borrowing needed!

How do I check if 1100 is the right answer?

Use addition to check subtraction! Add your answer to what you subtracted: $1100 + 50 = 1150$ . If you get the original number, you're correct!

What if I get confused about which number goes first?

In subtraction, the first number is what you start with, and the second number is what you take away. So $1150 - 50$ means "start with 1150, take away 50."

Why can't the answer be 1200?

Because $1200$ is bigger than 1150! When you subtract, your answer should be smaller than the number you started with (unless you're working with negative numbers).

Is there a pattern when subtracting multiples of 10?

Yes! When subtracting multiples of 10 (like 10, 20, 30, 50), you only change the tens digit and everything to the left of it. The ones digit stays the same!

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