Operations with Negative Numbers

The video tutorial explains how to evaluate a mathematical expression by simplifying within parentheses, handling exponents, and performing division before addition. It demonstrates the process step-by-step, showing how subtracting a negative is equivalent to adding a positive, and how to handle the square of a negative number. The tutorial concludes by verifying the result using a calculator.

What is the result of subtracting a negative number from another negative number?

• It is equivalent to adding a positive number.

• It is equivalent to subtracting a positive number.

• It results in a larger negative number.

• It results in zero.

How do you simplify the expression -4 - (-2)?

• -4 - 0

• -4 + (-2)

• -4 - 2

• -4 + 2

What is the square of negative two?

• -2

• 4

• 2

• -4

How do you evaluate the square of a negative number?

• Multiply the number by zero.

• Multiply the number by itself.

• Add the number to itself.

• Subtract the number from itself.

What is the result of -6 divided by 3?

• -3

• 2

• -2

• 3

Which operation should be performed first according to the order of operations?

• Addition

• Subtraction

• Division

• Exponentiation

What is the result of adding -2 and 4?

• 6

• -2

• 2

• -6

How can you verify the result of an expression?

• By asking a friend.

• By using a calculator.

• By ignoring the result.

• By guessing the answer.

What is the final result of the expression after simplification?

• -2

• 0

• 4

• 2

Why is the final result positive in the expression?

• Because the calculator made an error.

• Because the expression is incorrect.

• Because the positive number outweighs the negative number.

• Because the negative numbers cancel out.