1. Multiplying more than two integers

2. Rules for Multiplication of integers
The product of two positive integers is a positive integer
The product of two negative integers is a positive integer
The product of a positive integer and negative integer is a negative integer

3. Multiplying Integers
When multiplying more than two integers, we just have to multiply two
integers at a time by putting parenthesis
Example:
a x b x c = (a x b) x c
(or)
a x b x c = a x (b x c)
Both product yields the same result, as Multiplication is always holds for
Associative property

4. Multiplying Integers Example 1 : (-4) X (-6) X (-8) Solution:
By putting parenthesis for first two integers , we have
(-4) X (-6) X (-8) = [ (-4) x (-6) ] x (-8)
= (+24) x (-8)
- 192
As per sign rule, (-) x (-) = +
As per sign rule, (+) x (-) = -
Another method: By putting parenthesis for last two integers , we have
(-4) X (-6) X (-8) = (-4) x [ (-6) x (-8) ]
= (-4) x
= - 192
As per sign rule, (-) x (-) = +
As per sign rule, (-) x (+) = -
Answer: (-4) X (-6) X (-8) = - 192

5. By putting parenthesis for first two integers , we have
Example 2 : (-12) X 6 X (-10)
By putting parenthesis for first two integers , we have
(-12) X 6 X (-10) = [ (-12) X 6 ] X (-10)
= (- 72) X (-10) =
As per sign rule, (-) x (+) = -
As per sign rule, (-) x (-) = +
Answer: (-12) X 6 X (-10) = 720
Example 3 : (-5) X 8 X (-4) X (-3)
Solution:
By putting parenthesis for first two integers , we have
(-5) X 8 x (-4) x (-3) = [(-5) x 8] x [(-4) x (-3)]
= x [(-4) x (-3)]
By putting parenthesis for last two integers , we have
= x =
As per sign rule,
(-) x (+) = (-)
As per sign rule,
(-) x (-) = (+)
As per sign rule, (-) x (+) = (-)

6. TRY THESE
3 x 7 x (-4)
(-5) x 10 x (-7)
(-7) x (-2) x 3 x 5