Understanding Subtraction of Negative Integers

In this video, Mr. J explains how to subtract a negative integer from another negative integer. He demonstrates this concept with two examples: negative 5 minus negative 9, and negative 23 minus negative 10. The key strategy involves adding the opposite, which turns the subtraction of a negative into an addition problem. Mr. J also provides a conceptual understanding by comparing negative numbers to debts, explaining that subtracting a negative is like removing a debt, thus increasing value. The video concludes with a recap of the method and its implications.

What is the main topic discussed in the video?

• Adding positive integers

• Subtracting a negative integer from a negative integer

• Multiplying integers

• Dividing integers

What is the first step in solving a subtraction of negative integers problem?

• Multiply the integers

• Add the integers

• Add the opposite of the number being subtracted

• Subtract the opposite of the number being subtracted

In the example of negative 5 minus negative 9, what is the final result?

• Positive 4

• Negative 14

• Negative 4

• Zero

Why does subtracting a negative integer increase the value of the problem?

• Because it decreases the value

• Because it has no effect on the value

• Because it is like adding a positive integer

• Because subtraction always increases value

How does the money analogy help in understanding the subtraction of negative integers?

• It shows that subtracting a debt has no effect

• It shows that subtracting a debt is like losing money

• It shows that subtracting a debt is like gaining money

• It shows that subtracting a debt is like multiplying money

In the second example, what is the result of negative 23 minus negative 10?

• Negative 33

• Negative 13

• Positive 13

• Zero

What is the opposite of negative 10?

• Negative 10

• Positive 10

• Zero

• Negative 20

What happens to the value of a problem when you subtract a negative integer?

• It becomes zero

• It increases

• It remains the same

• It decreases

What is the equivalent operation to subtracting a negative integer?

• Adding a positive integer

• Dividing by a positive integer

• Subtracting a positive integer

• Multiplying by a negative integer

What is the final answer when you add negative 23 and positive 10?

• Zero

• Positive 13

• Negative 13

• Negative 33