Maximum Value Analysis: Identifying the Highest-Result Expression

Order of Operations with Expression Comparison

Choose the exercise for the highest result

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Step-by-step video solution

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00:06 Parentheses precede multiplication
00:19 Here too, and in the following exercises, parentheses precede multiplication

Step-by-step written solution

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1

Understand the problem

Choose the exercise for the highest result

2

Step-by-step solution

Let's solve exercise A:

8×8=64 8\times8=64

Let's solve exercise B:

10×6=60 10\times6=60

Let's solve exercise C:

12×5=60 12\times5=60

Let's solve exercise D:

15×4=60 15\times4=60

3

Final Answer

8×(124) 8\times(12-4)

Key Points to Remember

Essential concepts to master this topic
  • Rule: Calculate operations inside parentheses before multiplying by outside numbers
  • Technique: First find 124=8 12-4=8 , then multiply 8×8=64 8\times 8=64
  • Check: Compare all final results to identify the largest value ✓

Common Mistakes

Avoid these frequent errors
  • Multiplying before calculating parentheses
    Don't multiply 8×12 first then subtract = wrong answer 92! This violates order of operations where parentheses come first. Always solve what's inside parentheses before multiplying.

Practice Quiz

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\( 100+5-100+5 \)

FAQ

Everything you need to know about this question

Why do I need to solve the parentheses first?

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The order of operations (PEMDAS) requires you to solve parentheses first! If you multiply before solving parentheses, you'll get completely wrong answers that can't be compared correctly.

How do I know which expression gives the highest result?

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Calculate each expression completely, then compare the final numbers. In this case: 64, 60, 60, 60. The largest is 64!

What if two expressions give the same result?

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That's totally normal in math! Like options B, C, and D all equal 60. When comparing, you're looking for the single highest value, which is still option A with 64.

Can I use a calculator for these problems?

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Yes, but make sure you enter the operations in the correct order! Most calculators follow order of operations, so 8×(124) 8\times(12-4) should give you 64 automatically.

Why are three answers the same but one different?

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This tests whether you can spot the one expression that's different! The other three were designed to have the same result (60) to make sure you find the unique highest value (64).

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