Question

Integer Operations Review Name: Adding Integers 1) 85+ (-96) = 2) 80 + 57 = 3) 86 + (-38) = 4) 22 + (-41) = 5) -18 + (-45) = 6) -32 + 48 = 7) 6+ (-33) = 8) 6 + (-47) = 9) (-78) + 69 = 10) -72 + (-30) + 10 = 11) -83 + (-36) + 20 = Subtracting Integers 1 1-3= 2) 2-(-5) = 3) 6-(-9) = 4) -7 - (-1) = 5) -7 - 4 = 6) 3- (-2) = 7 1-9= 8) 2-9 = 9) -8 - (-1) =​

Answer 1

Given:

Addition and subtraction of integers.

To find:

The value of each expression.

Solution:

We know that,

$(+)(+)=(+),(+)(-)=(-),(-)(+)=(-),(-)(-)=(+)$

Adding Integers :

1) 85+ (-96) = 85 - 96 = -11

2) 80 + 57 = 137

3) 86 + (-38) = 86 - 38 = 48

4) 22 + (-41) = 22 - 41 = -19

5) -18 + (-45) = -18 - 45 = -63

6) -32 + 48 = 16

7) 6+ (-33) = 6 - 33 = -27

8) 6 + (-47) = 6 - 47 = -41

9) (-78) + 69 = -78 + 69 = -9

10) -72 + (-30) + 10 = -72 - 30 + 10

                              = -102 + 10

                              = -92

11) -83 + (-36) + 20 = -83 - 36 + 20

                              = -119 + 20

                              = -99

Subtracting Integers :

1) 1-3 = -2

2) 2-(-5) = 2 + 5 = 7

3) 6-(-9) = 6 +9 =15

4) -7 - (-1) = -7 + 1 = -6

5) -7 - 4 = -11

6) 3- (-2) = 3 + 2 = 5

7) 1-9 = -8

8) 2-9 = -7

9) -8 - (-1) =​ -8 + 1 = -7