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1. Adding &
Subtracting
INTEGERS
GENERAL EDUCATION - MATH
SerJhob

2. Adding &
Subtracting
INTEGERS
GENERAL EDUCATION - MATH
SerJhob

3. SerJhob
GENERAL EDUCATION - MATH
•Addition
•Subtraction
•Multiplication
•Division
Operations on
Integers

4. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Addition
• LIKE SIGNS – add the absolute values, and prefix
the sign of the addends.
• UNLIKE SIGNS – get the absolute values and
subtract the smaller from the other number.
Prefix the sign of the addend having the larger
absolute value.

5. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Addition
• LIKE SIGNS – add the absolute values, and prefix
the sign of the addends.
1 + 2 = -1 + -2 =
4 + 6 = -4 + -6 =
3
10
-3
-10

6. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•TRY!
11 + 14 = -31 + -22 =
13 + 42 = -181 + -257 =
42 + 61 = -104 + -236 =
25
55
103
-53
-438
-340

7. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Addition
• UNLIKE SIGNS – get the absolute values and
subtract the smaller from the other number.
Prefix the sign of the addend having the larger
absolute value.
8 + -5 = -8 + 5 =
+3 -3

8. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Addition
• UNLIKE SIGNS – get the absolute values and
subtract the smaller from the other number.
Prefix the sign of the addend having the larger
absolute value.
10 + -31 = -14 + 51 =
-21 37

9. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Addition
• UNLIKE SIGNS – get the absolute values and
subtract the smaller from the other number.
Prefix the sign of the addend having the larger
absolute value.
3 + -1 + 4 + -7 =-1
2 + 4 = 6 + -7 = -1

10. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•TRY!
6 + -4 = -3 + -2 + 2 =
-3 + 2 = -8 + -5 + 7 =
12 + -21 = -14 + 23 + 6 =
2
-1
-11
-3
-6
15

11. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Subtraction
• If the minuend and subtrahend are both positive
and the minuend is greater than the subtrahend,
proceed to subtraction. Otherwise change the
sign of the subtrahend and proceed to addition.
14 – 5 = 9 5 – 14 = ?

12. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Subtraction
14 – 5 = 9 5 – 14 =
34 – 54 = 13 – 36 =
-14
5 + = -9
-9
34 + -54 =
-20 -23
13 + -36 =

13. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•Subtraction
-2 – 5 = -5 – 14 =
14 – -12 = 11 – -10 =
-19
-2 + -5 =
26 21
11 + 10 =
-7
-5 + -14 =
14 + 12 =

14. Operations on
Integers
SerJhob
GENERAL EDUCATION - MATH
•TRY!
20 – 32 = -34 - -23 =
78 – 54 = 67 - -34 =
8 – 17 = -145 + -16 =
-11
-12
24
-9
101
-261

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