Answer:

A.

15

12

-21

14

30

B.

21

37

-1

32

-40

C.

24

24

-30

-48

0

D.

4

5

-7

-4

3

Answer:

1. 15

2.12

3. 21

4. 14

5. 30

When integers have the same sign, add the integers. The sum will have the same sign as the integers. When integers have different signs, find the difference between the two numbers. The sum will have the sign of the integer with the largest absolute value.

1. 21

2. 37

3. - 1

4. 32

5. - 40

To subtract two integers, rewrite the subtraction expression as the first number plus the opposite of the second number. Some examples are shown below. To subtract two integers, add the opposite of the second integer to the first integer. This can be written symbolically as a - b = a +

1. 24

2. 24

3. - 30

4. - 48

5. 0

What are the Four Rules for Multiplying Integers?

Rule 1: Positive × Positive = Positive.

Rule 2: Positive × Negative = Negative.

Rule 3: Negative × Positive = Negative.

Rule 4: Negative × Negative = Positive.

1. 4

2. 5

3. - 7

4. - 4

5. 3

What is the Rule of Division of Integers?

Positive ÷ positive = positive.

Negative ÷ negative = positive.

Negative ÷ positive = negative.