Adding and Subtracting Positive and Negative Integers

The video tutorial explains how to add and subtract positive and negative integers using a number line. It covers different scenarios, such as adding two positive numbers, subtracting a positive from a negative, and handling tricky cases in subtraction by changing signs. The tutorial emphasizes understanding the position of numbers on a number line to determine the operation and the resulting sign of the answer.

What is the first step in adding and subtracting integers using a number line?

• Ignore the negative numbers.

• Identify the middle point as zero.

• Start from the largest number.

• Always add the numbers first.

If you have two positive numbers on the same side of zero, what should you do?

• Multiply them.

• Subtract them.

• Add them.

• Ignore the smaller number.

What is the result of adding 4 and 5 on the positive side of the number line?

• 1

• 5

• 0

• 9

When you have numbers on opposite sides of zero, what operation should you perform?

• Multiply them.

• Subtract them.

• Add them.

• Divide them.

If you have 5 on the positive side and 4 on the negative side, what is the result?

• 0

• 9

• 5

• 1

How do you determine the sign of the result when subtracting integers on opposite sides?

• Always negative.

• Always positive.

• The sign of the smaller number.

• The sign of the larger number.

What is the result of subtracting 4 from 5 when 5 is on the negative side?

• 9

• Negative 1

• 1

• 0

If both numbers are negative and on the same side, what should you do?

• Subtract them.

• Add them.

• Multiply them.

• Ignore the smaller number.

What is the result of adding -5 and -4?

• 1

• Negative 1

• 9

• Negative 9

What is the result of subtracting 4 from -5?

• 1

• Negative 1

• Negative 9

• 9