Understanding Integer Addition

The video tutorial explains how to add negative 127 and 98 by recognizing that the negative number outweighs the positive, resulting in a negative sum. It covers the formal rules for adding integers with different signs, including finding absolute values and subtracting the smaller from the larger. The tutorial also demonstrates the process on a number line, confirming the result of negative 29.

What is the expected sign of the sum when adding -127 and 98?

• Positive

• Cannot be determined

• Negative

• Zero

What is the first step in adding integers with different signs?

• Multiply the numbers

• Add the numbers directly

• Find the absolute values

• Divide the numbers

What is the absolute value of -127?

• 127

• 98

• 0

• -127

After finding the absolute values, what is the next step in the process?

• Divide the absolute values

• Subtract the smaller absolute value from the larger one

• Multiply the absolute values

• Add the absolute values

What is the result of subtracting 98 from 127?

• 49

• 19

• 39

• 29

How do you determine the sign of the sum?

• By the sign of the smaller number

• By the sign of the larger absolute value

• By the sign of the second number

• By the sign of the first number

On a number line, how do you represent -127?

• Move right 127 units from 0

• Stay at 0

• Move left 127 units from 0

• Move right 98 units from 0

What is the final position on the number line after adding 98 to -127?

• 29

• 30

• -30

• -29

What is the final result of adding -127 and 98?

• 0

• 98

• -29

• 29