MULTIPLYING POSITIVE AND NEGATIVE NUMBERS

Answer each of the following multiplications:

Problem 1 :

2 × -3

Solution:

2 × -3

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -6

Problem 2 :

-4 × 3

Solution:

-4 × 3

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -12

Problem 3 :

-5 × 5

Solution:

-5 × 5

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -25

Problem 4 :

-7 × -2

Solution:

-7 × -2

Since these are having same signs, we multiply them and put positive sign for the answer.

= 14

Problem 5 :

-6 × -3

Solution:

-6 × -3

Since these are having same signs, we multiply them and put positive sign for the answer.

= 18

Problem 6 :

8 × -4

Solution:

8 × -4

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -32

Problem 7 :

-9 × 3

Solution:

-9 × 3

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -27

Problem 8 :

-5 × -8

Solution:

-5 × -8

Since these are having same signs, we multiply them and put positive sign for the answer.

= 40

Problem 9 :

-9 × 7

Solution:

-9 × 7

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -63

Problem 10 :

10 × -8

Solution:

10 × -8

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -80

Problem 11 :

7 × -4

Solution:

7 × -4

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -28

Problem 12 :

6 × 8

Solution:

6 × 8

Since these are having same signs, we multiply them.

= 48

Problem 13 :

-11 × 3

Solution:

-11 × 3

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -33

Problem 14 :

4 × -15

Solution:

4 × -15

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -60

Problem 15 :

-12 × -12

Solution:

-12 × -12

Since these are having same signs, we multiply them and put positive sign for the answer.

= 144

Problem 16 :

-5 × 7

Solution:

-5 × 7

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -35

Problem 17 :

9 × -8

Solution:

9 × -8

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -72

Problem 18 :

-7 × -8

Solution:

-7 × -8

Since these are having same signs, we multiply them and put positive sign for the answer.

= 56

Problem 19 :

12 × -6

Solution:

12 × -6

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -72

Problem 20 :

4 × -13

Solution:

4 × -13

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -52

Problem 21 :

-11 × 10

Solution:

-11 × 10

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -110

Problem 22 :

-20 × -6

Solution:

-20 × -6

Since these are having same signs, we multiply them and put positive sign for the answer.

= 120

Problem 23 :

14 × 7

Solution:

14 × 7

Since these are having same signs, we multiply them.

= 98

Problem 24 :

-18 × -13

Solution:

-18 × -13

Since these are having same signs, we multiply them and put positive sign for the answer.

= 234

Problem 25 :

25 × -7

Solution:

25 × -7

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -175

Problem 26 :

-16 × 21

Solution:

-16 × 21

Since the given two numbers are having different signs, we multiply them and put negative sign for the answer. 

= -336