adding & subtracting integers
adding & subtracting integers
multiplying integers
dividing integers
rules
100

-1+8

7

100

12-2

10

100

2(-2)

-4

100

-4/2

-2

100

-(-)=

+

200

-3+(-7)

-11

200

16-(-3)

19

200

-3(-5)

15

200
9/-3
-3
200

-(+)=

-

300

11+(-15)

-4

300

-15-(-32)

17

300

-7(6)

-42

300
24/-3
-8
300

+(+)=

+

400

-23+54

31

400

-54-27

-81

400

12(-13)

-156

400
-49/-7
7
400

If you have same signs addends, you .................

add and keep the sign

500

-1372+(-137)

-1509

500

123-(-37)

160

500

-15(20)

-300

500
-144/12
-12
500

If you have different signs addends , you ..............

subtract and take the large number's sign.

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