# positive and negative numbers lesson 6. adding integers positive + positive = positive positive +...

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• POSITIVE AND NEGATIVE NUMBERSLESSON 6

• ADDING INTEGERSPositive + Positive = Positive( +3) + (+2) = +5

When a number is positive, you do not have to use the (+) sign.(+3) + (+2) = 5

• ADDING TWO NEGATIVE NUMBERSNegative + Negative = Negative(- 6) + (- 3) = - 9

When a number is NEGATIVE, you do have to use the (-) sign.

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 1:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 1:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 1:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 2:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 2:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 2:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 3:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 3:

• ADDING POSITIVE AND NEGATIVE INTEGERS Sum of a negative and a positive number - Keep the sign of the larger number and subtractEXAMPLE 3:

• SUBTRACTING INTEGERSNegative - Positive = Negative (same as adding two negative numbers)(- 8) - 3 = -8 + (-3) = -11

Another way of saying this:ADD THE OPPOSITE(- 8) - 3 = -8 + (-3) = -11

• SUBTRACTING INTEGERSPositive - Negative = Positive + Positive = Positive4 - (-3) = 4 + 3 = 7

Once again you are adding the opposite4 - (-3) = 4 + 3 = 7

• SUBTRACTING INTEGERSNegative - Negative = Negative + Positive =Keep the sign of the larger number and subtract (-7) - (-5) = ( -7) + 5 = -2(-5) - ( -7) = (-5) + 7 = 2

• TRY THESE

• TRY THESE