Solve Complex Expression: 96-64÷((5+13)÷9×4)+48 Using Order of Operations

Order of Operations with Nested Parentheses

Solve the following problem:

9664:((5+13):94)+48= 96-64:\big((5+13):9\cdot4\big)+48=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:11 Let's solve this math problem.
00:14 First, we handle what's inside the parentheses.
00:20 Remember, keep the right order of operations in there.
00:29 Since it's just multiply and divide, go from left to right.
00:37 Next, follow the proper operations order for the rest.
00:44 Multiplying and dividing always before adding and subtracting.
00:49 Keep solving the expression in the right order.
00:59 And that's the solution! Great job!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following problem:

9664:((5+13):94)+48= 96-64:\big((5+13):9\cdot4\big)+48=

2

Step-by-step solution

Simplify this expression whilst following the order of operations . The order of operations states that exponents precede multiplication and division, which in turn precede addition and subtraction, and that parentheses precede all of the above:

Therefore, we'll start by simplifying the expressions inside of the parentheses. Note that in this expression there are parentheses within parentheses. Begin by simplifying the expression in the innermost parentheses and perform the addition operation within them:

9664:((5+13):94)+48=9664:(18:94)+48 96-64:\big((5+13):9\cdot4\big)+48= \\ 96-64:\big(18:9\cdot4\big)+48

Proceed to the division and multiplication operations that remain inside of the parentheses.

Follow the natural order of operations from left to right, given that there are no additional parentheses in this expression (within the parentheses) as well as no defined order as mentioned above. Therefore we'll first perform the division operation and then the multiplication operation:

9664:(18:94)+48=9664:(24)+48=9664:8+48 96-64:\big(18:9\cdot4\big)+48=\\ 96-64:\big(2\cdot4\big)+48=\\ 96-64:8+48

Remember that multiplication and division precede addition and subtraction. Therefore we'll first perform the division operation and only in the next step the subtraction and addition operations:

9664:8+48=968+48=136 96-64:8+48 =\\ 96-8+48 =\\ 136

Let's summarize the steps of simplifying the expression:

9664:((5+13):94)+48=9664:(18:94)+48=9664:8+48=136 96-64:\big((5+13):9\cdot4\big)+48= \\ 96-64:\big(18:9\cdot4\big)+48=\\ 96-64:8+48 = \\ 136

Therefore, the correct answer is answer B.

3

Final Answer

136

Key Points to Remember

Essential concepts to master this topic
  • PEMDAS Rule: Start with innermost parentheses, then work outward systematically
  • Technique: Simplify (5+13) = 18, then 18÷9×4 = 2×4 = 8
  • Check: Final calculation 96-8+48 = 136 matches our answer ✓

Common Mistakes

Avoid these frequent errors
  • Working left to right without following order of operations
    Don't solve 96-64÷18÷9×4+48 from left to right = wrong answer 140! This ignores parentheses and division/multiplication priority. Always solve parentheses first, then division and multiplication from left to right.

Practice Quiz

Test your knowledge with interactive questions

\( 20\div(4+1)-3= \)

FAQ

Everything you need to know about this question

Why do I start with the innermost parentheses first?

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Parentheses create nested operations - like boxes inside boxes! You must solve the innermost box first: (5+13)(5+13) = 18, then use that result in the outer parentheses.

How do I handle division and multiplication together?

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When division and multiplication appear together (like 18÷9×418÷9×4), work from left to right: first 18÷9 = 2, then 2×4 = 8. Don't multiply 9×4 first!

What if I get a different answer than the choices?

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Stop and retrace your steps! Check that you solved parentheses first, then followed left-to-right for operations of equal priority. Most errors happen from rushing the order.

Why is the colon symbol used instead of ÷?

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The colon (:) is just another way to write division, common in many countries. 64:864:8 means exactly the same as 64÷864÷8 or 648\frac{64}{8}.

How can I avoid making calculation errors?

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Write out each step clearly and double-check your arithmetic. For this problem: 5+13=18, then 18÷9=2, then 2×4=8, then 64÷8=8, finally 96-8+48=136.

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