Solve: 57 Minus Circle Symbol (Where Circle = 7)

Q: What does the circle symbol mean in this problem?

The circle symbol $ \circ $ is just a variable, like using x or y. It represents the number 7 in this problem, so you replace it with 7 everywhere you see it.

Q: Why can't I just ignore the circle and calculate 57 - 0?

The circle isn't zero - it equals 7! Always read the given information carefully. When $ \circ = 7 $, you must substitute 7 for the circle symbol.

Q: How do I know I substituted correctly?

After substitution, your expression should have no variables left, only numbers. So $ 57 - \circ $ becomes $ 57 - 7 $, which you can calculate normally.

Q: What if the circle equaled a different number?

The same process applies! If $ \circ = 3 $, then $ 57 - \circ = 57 - 3 = 54 $. Just substitute whatever value the variable represents.

Q: Can I check my answer somehow?

Yes! Use addition to check subtraction. Since $ 57 - 7 = 50 $, check that $ 50 + 7 = 57 $ ✓

Variable Substitution with Simple Subtraction

$\circ=7$

Solve the following subtraction problem:

$57-\circ=$

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Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

$\circ=7$

Solve the following subtraction problem:

$57-\circ=$

Step-by-step solution

The problem requires us to solve the equation $57 - \circ$ , where $\circ = 7$ . Follow these steps:

Step 1: Substitute $\circ$ with its given value: $\circ = 7$ .
Step 2: Perform the subtraction using basic arithmetic: $57 - 7$ .
Step 3: Calculate the result: $57 - 7 = 50$ .

Following these steps, the solution to the problem is $\boldsymbol{50}$ .

Final Answer

$50$

Key Points to Remember

Essential concepts to master this topic

Substitution Rule: Replace the variable with its given value first
Technique: Convert $57 - \circ$ to $57 - 7$ then calculate
Check: Verify that $50 + 7 = 57$ matches the original ✓

Common Mistakes

Avoid these frequent errors

Forgetting to substitute the variable value
Don't leave the circle symbol $\circ$ in your final answer = incomplete solution! This means you haven't followed the substitution step. Always replace every variable with its given value before calculating.

Practice Quiz

Test your knowledge with interactive questions

If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?

FAQ

Everything you need to know about this question

What does the circle symbol mean in this problem?

The circle symbol $\circ$ is just a variable, like using x or y. It represents the number 7 in this problem, so you replace it with 7 everywhere you see it.

Why can't I just ignore the circle and calculate 57 - 0?

The circle isn't zero - it equals 7! Always read the given information carefully. When $\circ = 7$ , you must substitute 7 for the circle symbol.

How do I know I substituted correctly?

After substitution, your expression should have no variables left, only numbers. So $57 - \circ$ becomes $57 - 7$ , which you can calculate normally.

What if the circle equaled a different number?

The same process applies! If $\circ = 3$ , then $57 - \circ = 57 - 3 = 54$ . Just substitute whatever value the variable represents.

Can I check my answer somehow?

Yes! Use addition to check subtraction. Since $57 - 7 = 50$ , check that $50 + 7 = 57$ ✓

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Solve: 57 Minus Circle Symbol (Where Circle = 7)

Variable Substitution with Simple Subtraction

❤️ Continue Your Math Journey!

Step-by-step written solution

Understand the problem

Step-by-step solution

Final Answer

Key Points to Remember

Common Mistakes

Practice Quiz

FAQ

What does the circle symbol mean in this problem?

Why can't I just ignore the circle and calculate 57 - 0?

How do I know I substituted correctly?

What if the circle equaled a different number?

Can I check my answer somehow?

🌟 Unlock Your Math Potential

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