1. Intro To Adding Integers

2. Finding The Sum of Positive Integers
When finding the sum of positive integers you add the numbers and keep the positive sign.

3. Net Result
Positive 9
(+5) + (+4) = +9 Or
(+4) + (+5) = +9

4. Finding The Sum of Negative Integers
When finding the sum of negative integers you add the numbers and keep the negative sign.

5. Net Result
Negative 10
(-3) + (-7) = -10 Or
(-7) + (-3) = -10

6. Finding The Sum of a Positive and a Negative Integer
When finding the sum of a positive and a negative integer you subtract the numbers and keep the sign of the integer with the largest absolute value.

8. Net Result
Positive 2
(+7) + (-5) = +2 Or
(-5) + (+7) = +2

10. Net Result
Zero
(+5) + (-5) = 0 Or
(-5) + (+5) = 0

11. Integer Recap You Have or Positive symbol means You’ve Earned
Negative symbol means
A positive and a negative equals zero!
You Owe

12. (+3) + (-7)
(-5) + (-2)
(-3) + (-6) + (+4)
(+3) + (-2) + (+2)

13. (+50) + (-100)
(-25) + (+10)

14. Rules For Adding Integers
Positive Integers
To add two positive integers you add the numbers and keep the positive sign.
Negative Integers
To add two negative integers you add the numbers and keep the negative sign.
A Negative and a Positive Integer
To add a positive and a negative integer you subtract the numbers and keep the sign of the integer with the largest absolute value.

15. Intro To Subtracting Integers

16. (+5) – (+3) = +2
(+5) – (+3) =

17. (-6) – (-2) = -4
(-6) – (-2) =

18. (+3) – (+5) = -2
(+3) – (+5) =

19. (-2) – (-6) = +4
(-2) – (-6) =

20. (+3) – (-2) = +5
(+3) – (-2) =

21. (+1) – (+4) = -3
(+1) – (+4) =

22. (-5) – (+3) = -8
(-5) – (+3) =

23. (-2) – (-5) = +3
(-2) – (-5) =

24. Try These (-8) – (-3) = (+4) – (-5) = (-4) – (-5) = (+1) – (-6) =
(-5) – (+6) =
(-2) – (-3) =
(-20) – (-10) =
(+30) – (-3) =
(-20) – (-30) =

25. Try These (-3) – (-2) = (+6) – (-2) = (-1) – (-4) = (+3) – (-2) =
(-5) – (+2) =
(-2) – (-4) =
(-30) – (-20) =
(+50) – (-10) =
(-20) – (-30) =

26. Try These (-5) + (+2) = (+6) + (-2) = (-2) – (-6) = (+7) + (-2) =
(+8) + (-4) =
(-3) – (+6) =
(+50) – (-10) =
(-20) + (-30) =

27. Try These (-5) + (+2) = -3 (+6) + (-2) = +4 (-2) – (-6) = +4
(+7) + (-2) = +5
(+8) + (-4) = +4
(-3) – (+6) = -9
(+50) – (-10) = +60
(-20) + (-30) = -50

28. Multiplying and Dividing Integers

29. (+2) x (+4) = +8
(+2) x (+4) =
This means you have two sets of four positive tiles or you have earned two groups of four dollars.

30. (+2) x (-4) = -8
(+2) x (-4) =
This means you have two sets of four negative tiles or you have two bills that you owe,each bill is for four dollars.

31. (-2) x (-4) = +8
(-2) x (-4) =
This means you don’t have two sets of four negative tiles or you don’t owe two bills, each bill is for four dollars.

32. (-2) x (+4) = -8
(-2) x (+4) =
This means you don’t have two sets of four positive tiles or you don’t have two groups of four dollars.

33. Try These (+3) x (-2) = (-2) x (-2) = (+5) x (-2) = (-3) x (+2) =

34. Try These (-91) x (-101) = (+152) x (-21) = (-19) x (+203) =

35. Try These (-91) x (-101) = (+152) x (-21) = (-19) x (+203) =

36. Multiplying Integers
FACTOR
PRODUCT + _

37. Dividing Integers
DIVIDEND
DIVISOR
QUOTIENT + _