(13.58*20+0.32*6+0.32*7+8.40*18)-20.19*(0,5*20+0,25*6+0,25*7)

The result of the given expression is \( 159.4425 \).

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Here are 5 related questions to expand on this:
1. How do you simplify expressions involving parentheses?
2. What is the role of order of operations (PEMDAS) in solving such problems?
3. Can this result be represented as a fraction or in terms of significant figures?
4. How can rounding affect the result in practical scenarios?
5. How would you handle larger, more complex expressions?

**Tip:** Always evaluate expressions inside parentheses first to ensure the correct order of operations.

Solve the expression (13.58*20+0.32*6+0.32*7+8.40*18)-20.19*(0,5*20+0,25*6+0,25*7) using basic arithmetic rules and the order of operations (PEMDAS). This step-by-step solution covers concepts such as parentheses and multiplication, perfect for students in Grades 6-8.

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