## Math Problem Statement

## Solution

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## Math Problem Analysis

### Mathematical Concepts

Multiplication

Division

Rational Numbers

Negative Numbers

Fractions

### Formulas

Multiplication of integers: a × b

Division of integers: a ÷ b

Multiplying fractions: (a/b) × (c/d) = (a×c)/(b×d)

Dividing fractions: (a/b) ÷ (c/d) = (a/b) × (d/c)

### Theorems

Multiplying/Dividing negative numbers: The product or quotient of two negative numbers is positive.

### Suitable Grade Level

Grades 7-8

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