Solve the Number Sequence: 7-2+6 Step by Step

Q: Why can't I add 2 + 6 first since addition is easier?

When operations have the same priority (like addition and subtraction), you must work left to right. Changing the order changes your answer completely!

Q: What if I forget which direction to go?

Remember: Left to Right for same-level operations! Think of reading - you start on the left and move right, just like solving these problems.

Q: How do I know if subtraction and addition have equal priority?

Addition and subtraction are always equal priority in order of operations. Same with multiplication and division. When equal, go left to right!

Q: What happens if I use parentheses?

Parentheses change everything! $7 - (2 + 6) = 7 - 8 = -1$ is completely different from $7 - 2 + 6 = 11$. Always solve what's in parentheses first.

Order of Operations with Mixed Addition

$7-2+6=\text{ ?}$

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Understand the problem

$7-2+6=\text{ ?}$

Step-by-step solution

To solve $7 - 2 + 6$ :

Begin with the subtraction: $7 - 2 = 5$
Then add the result to 6: $5 + 6 = 11$
Thus, the correct answer is $11$ .

Final Answer

$11$

Key Points to Remember

Essential concepts to master this topic

Rule: Work left to right when operations have equal priority
Technique: First calculate 7 - 2 = 5, then 5 + 6 = 11
Check: Verify by calculating: 7 - 2 + 6 = 5 + 6 = 11 ✓

Common Mistakes

Avoid these frequent errors

Calculating addition before subtraction
Don't add 2 + 6 = 8 first, then subtract from 7 = wrong answer of -1! This ignores left-to-right order for equal priority operations. Always work from left to right when you have addition and subtraction together.

Practice Quiz

Test your knowledge with interactive questions

Solve the following equation:

$12+7-5\text{ }=$

FAQ

Everything you need to know about this question

Why can't I add 2 + 6 first since addition is easier?

When operations have the same priority (like addition and subtraction), you must work left to right. Changing the order changes your answer completely!

What if I forget which direction to go?

Remember: Left to Right for same-level operations! Think of reading - you start on the left and move right, just like solving these problems.

Are there any shortcuts for problems like this?

No shortcuts needed! These problems are already simple. Just follow the left-to-right rule and you'll get the right answer every time.

How do I know if subtraction and addition have equal priority?

Addition and subtraction are always equal priority in order of operations. Same with multiplication and division. When equal, go left to right!

What happens if I use parentheses?

Parentheses change everything! $7 - (2 + 6) = 7 - 8 = -1$ is completely different from $7 - 2 + 6 = 11$ . Always solve what's in parentheses first.

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