Dealing with Negative Numbers: Addition and Subtraction

The video tutorial explains how to handle positive and negative numbers in addition and subtraction using a bath analogy. It covers the effects of adding hot (positive) and cold (negative) water on temperature, illustrating how these actions correspond to moving up or down a number line. The tutorial outlines four key rules for these operations and demonstrates them through example problems, emphasizing the importance of understanding the signs and their impact on calculations.

What happens to the temperature when you add hot water to the bath?

• The temperature fluctuates.

• The temperature decreases.

• The temperature remains the same.

• The temperature increases.

If you add cold water to the bath, what is the effect on the temperature?

• The temperature increases.

• The temperature decreases.

• The temperature remains constant.

• The temperature becomes unpredictable.

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

• The result becomes zero.

• The result is an increase in value.

• The result remains unchanged.

• The result is a decrease in value.

Which of the following describes the effect of removing hot water from the bath?

• The temperature increases.

• The temperature decreases.

• The temperature remains the same.

• The temperature becomes unstable.

When adding a positive number, which direction do you move on the number line?

• Down the number line.

• Move randomly.

• Up the number line.

• Stay at the same position.

In the expression 8 + (-6), what is the final result?

• 14

• -2

• 8

• 2

For the expression -3 - (+8), what is the outcome?

• -11

• 5

• -5

• 11