Adding and Subtracting Negative and Positive Numbers

Adding integers with the SAME sign you

• add the integers and keep the sign

• add the numbers and make it always negative

• keep the subtraction

• subtract and keep the sign

Adding integers with different signs you

• add the numbers and forget the sign

• subtract the integers and keep the sign of the greatest absolute value.

• turn the sign negative

• turn the sign positive

-3 + (-4)

• 7

• -1

• -7

• 1

12 + (-2)

• -10

• -14

• 14

• 10

-14 + (-3)

• -17

• 11

• -11

• 17

What is the inverse operation of addition?

• addition

• subtraction

• multiplication

• division

What is the inverse operation of subtraction?

• addition

• subtraction

• multiplication

• division

When you add a positive number on a number line, you move to the ________.

• left

• right

When you subtract a positive number on a number line, you move to the ________.

• left

• right

When you add a negative number on a number line, you move to the ________.

• left

• right